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Topical›Physics 0625›Electricity and magnetism›Electric circuits›Paper 1

Electric circuits — Paper 1 · IGCSE Physics 0625

4.3· 471 questions · 471 marks · 565 min · 2005–2025· Multiple choice

Every Cambridge IGCSE Physics Paper 1 question on electric circuits, laid out as 176 A4 pages with the mark scheme below. Nothing is left out. Free to read, no account.

QuestionsMark scheme
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Questions176 pages

Question 1: In which circuit does the voltmeter read the potential difference across the lamp? A B V V C D V VQuestion 2: In the circuit below, X and Y are identical 6 V lamps. 6 V switch X Y What happens when the switch is closed? A X lights more brightly than…1 / 176
Question 3: The diagram shows a circuit with three ammeters, X, Y and Z. A X Y A Z A Which set of readings is possible? X Y Z A 2 A 3 A 5 A B 3 A 2 A 5…Question 4: A lamp is to be connected in a circuit so that the p.d. across it can be varied from 0 to 6 V. Which circuit would be most suitable? A B 6 …2 / 176
Question 5: A student makes the circuit shown. 5 A fuse The fuse has blown and stopped the current. What could have caused this? A The current rating o…Question 6: Which circuit should be used to find the resistance of a lamp? A B A V A V C D V V A AQuestion 7: Which component can store energy for use in time delay circuits? A capacitor B potentiometer C resistor D thermistor3 / 176
Question 8: When the circuit shown is connected with switch S open, the 6 V lamp glows. 6 V R 6 V lamp S What happens to the brightness of the lamp whe…Question 9: Why are the electric lamps in a house lighting circuit normally connected in parallel? A The current in every circuit must be the same. B T…Question 10: In the circuit shown, one of the fuses blows and all the lamps go out. Which fuse blows? A B C DQuestion 11: Which symbol represents an electrical component used to store energy? A B C D4 / 176
Question 12: Four lamps and four switches are connected to a power supply as shown in the circuit diagram. When all the switches are closed, all the lam…Question 13: Four resistors and an ammeter are connected to a battery as shown. The ammeter reads 2 A. Which of the four labelled points in the circuit …Question 14: Which circuit is a variable potential divider (potentiometer)? A B output output C D output output5 / 176
Question 15: The circuit contains a relay. relay lamp 2 switch S lamp 1 When switch S is closed, what is the state of the lamps? lamp 1 lamp 2 A on on B…Question 16: Which diagram shows a circuit that will allow the lamps to be switched on and off independently? A B C DQuestion 17: What is the symbol for a fuse? A B C D6 / 176
Question 18: The circuit shows a current I in a resistor of resistance R. 3.0 V I R Which line gives possible values of I and of R? I / A R / Ω A 1.5 1.…Question 19: The circuit shown in the diagram contains an unknown component X, hidden in a box. The voltage-current graph for X is as shown. variable vo…7 / 176
Question 20: Four lamps are connected in a circuit as shown in the diagram. Each lamp is designed to operate at 12 V. 12 V The circuit is now switched o…Question 21: The diagram shows a battery connected to three identical resistors. Four ammeters A, B, C and D are connected in the circuit. Which ammeter…8 / 176
Question 22: In the circuit shown, the switch is closed for a long time, then opened. voltmeter 1 V V V voltmeter 2 voltmeter 3 Immediately after the sw…Question 23: Which circuit symbol represents a component used to store energy? A B C DQuestion 24: In the circuit shown, the switches S1 and S2 may be open (off) or closed (on). V + switches shown 12 V open (off) – S2 S1 Which line in the…9 / 176
Question 25: The device X in this circuit is designed to cut off the electricity supply automatically if too much current flows. X What is device X? A a…Question 26: The diagrams show two ways in which three lamps may be connected. X Y X Y Z Z circuit 1 circuit 2 Which statement is correct? A If lamp Y b…10 / 176
Question 27: Diagram 1 shows a potential divider circuit containing two 100 Ω resistors. One of the resistors is changed to 90 Ω, as shown in diagram 2.…Question 28: In the circuit below, X and Y are identical 6 V lamps. 6 V switch X Y What happens when the switch is closed (the current is switched on)? …11 / 176
Question 29: The diagram shows four different circuits. P Q 3 Ω 5 Ω R S 3 Ω 3 Ω 5 Ω 5 Ω What is the order of increasing resistance of these circuits? lo…Question 30: A student makes four circuits. In which circuit are both lamps protected by the fuse? A B C D12 / 176
Question 31: When the thermistor in the circuit below is heated, the lamp becomes brighter. Why does this happen? A The resistance of the lamp decreases…Question 32: Using the circuit shown, the current I is found for various voltages V. The temperature of the resistor does not change. variable direct vo…Question 33: In the circuit shown, ammeter X reads 0.5 A. 4.0 V X A A Y 3.0 Ω 5.0 Ω What does ammeter Y read? A 0 B 0.5 A C 3.5 A D 4.0 A13 / 176
Question 34: In the circuits shown, all the resistors are identical. Which circuit has the least resistance? A B C DQuestion 35: In the circuit below, one of the lamps breaks, causing all the other lamps to go out. Which lamp breaks? A C D BQuestion 36: Either a fuse or a circuit-breaker can be used to protect electrical cables from large currents that could cause overheating. X cable live …14 / 176
Question 37: The diagram shows a battery connected to two identical resistors. Three ammeters M1, M2 and M3 are connected in the circuit. M1 A A M3 A M2…Question 38: The diagram shows a torch containing two cells, a switch and a lamp. plastic case brass connecting switch strip lamp What is the circuit di…15 / 176
Question 39: An electrical component X is placed in water, as shown. A thermometer X water When the temperature of the water is increased, the reading o…Question 40: A certain electrical appliance is powered from a mains supply. The appliance normally uses a current of 3 A, but the current briefly rises …Question 41: The diagram shows a torch containing two cells, a switch and a lamp. plastic case brass connecting switch strip lamp What is the circuit di…16 / 176
Question 42: The diagram shows a battery connected to two identical resistors. Three ammeters M1, M2 and M3 are connected in the circuit. M1 A A M3 A M2…Question 43: An electrical component X is placed in water, as shown. A thermometer X water When the temperature of the water is increased, the reading o…17 / 176
Question 44: Which device is designed to allow a small direct current (d.c.) to control a large direct current (d.c.)? A a generator B a motor C a relay…Question 45: A circuit is set up to measure the resistance of a resistor R. The meter readings are 2.0 A and 3.0 V. A V R What is the resistance of the …Question 46: The circuit shown is a potential divider. X output What is component X? A a light-dependent resistor B a relay C a thermistor D a variable …18 / 176
Question 47: A lamp is connected in four circuits in turn, each using identical batteries. The resistors are all identical. In which circuit will the la…Question 48: Which diagram shows the correct positions for both the switch and the fuse? live wire switch A lamp neutral wire fuse fuse live wire switch…19 / 176
Question 49: A lamp is connected in four circuits in turn, each using identical batteries. The resistors are all identical. In which circuit will the la…Question 50: A circuit is set up to measure the resistance of a resistor R. The meter readings are 2.0 A and 3.0 V. A V R What is the resistance of the …20 / 176
Question 51: The circuit shown is a potential divider. X output What is component X? A a light-dependent resistor B a relay C a thermistor D a variable …Question 52: Which diagram shows the correct positions for both the switch and the fuse? live wire switch A lamp neutral wire fuse fuse live wire switch…21 / 176
Question 53: A potential difference (p.d.) across a resistor causes a current in it. resistor current p.d. The p.d. and the resistance of the resistor c…Question 54: The diagram shows a circuit containing two ammeters and three resistors. ammeter ammeter A A X Y R1 R2 R3 Which of the ammeters will show t…Question 55: Which component can store energy and can be used in time-delay circuits? A a capacitor B a potentiometer C a resistor D a thermistor22 / 176
Question 56: A circuit contains two resistors connected in parallel with a battery. R P 2 Ω Q 4 Ω Which of the following statements about the currents a…Question 57: The potential divider shown is connected across a constant 12 V supply. V1 20 Ω 12 V V2 R When R has a value of 20 Ω, the voltmeter reading…Question 58: A fuse is a safety device for use in an electrical appliance. How does a fuse affect a circuit when the current in it becomes higher than t…23 / 176
Question 59: The diagram shows a circuit containing two ammeters and three resistors. ammeter ammeter A A X Y R1 R2 R3 Which of the ammeters will show t…Question 60: A potential difference (p.d.) across a resistor causes a current in it. resistor current p.d. The p.d. and the resistance of the resistor c…24 / 176
Question 61: The potential divider shown is connected across a constant 12 V supply. V1 20 Ω 12 V V2 R When R has a value of 20 Ω, the voltmeter reading…Question 62: A circuit contains two resistors connected in parallel with a battery. R P 2 Ω Q 4 Ω Which of the following statements about the currents a…Question 63: A fuse is a safety device for use in an electrical appliance. How does a fuse affect a circuit when the current in it becomes higher than t…25 / 176
Question 64: The diagram shows a circuit containing two ammeters and three resistors. ammeter ammeter A A X Y R1 R2 R3 Which of the ammeters will show t…Question 65: A circuit contains two resistors connected in parallel with a battery. R P 2 Ω Q 4 Ω Which of the following statements about the currents a…Question 66: A potential difference (p.d.) across a resistor causes a current in it. resistor current p.d. The p.d. and the resistance of the resistor c…26 / 176
Question 67: The potential divider shown is connected across a constant 12 V supply. V1 20 Ω 12 V V2 R When R has a value of 20 Ω, the voltmeter reading…Question 68: Which component can store energy and can be used in time-delay circuits? A a capacitor B a potentiometer C a resistor D a thermistorQuestion 69: An ammeter and an 18 Ω resistor are connected in series with a battery. The reading on the ammeter is 0.50 A. The resistance of the battery…Question 70: Which circuit includes a capacitor and what does the capacitor do in this circuit? what the circuit capacitor does A potential divider stor…27 / 176
Question 71: A student sets up the circuit shown. The switch is open (off). X Y Z Which lamps are on and which lamps are off? lamp X lamp Y lamp Z A off…28 / 176
Question 72: The diagram shows a thermistor in a potential divider. A voltmeter is connected across the thermistor. V The graph shows how the resistance…Question 73: In this circuit, a component at X automatically protects the wiring from overheating if there is a fault. X electrical supply Which compone…29 / 176
Question 74: An ammeter and an 18 Ω resistor are connected in series with a battery. The reading on the ammeter is 0.50 A. The resistance of the battery…Question 75: Which circuit includes a capacitor and what does the capacitor do in this circuit? what the circuit capacitor does A potential divider stor…30 / 176
Question 76: The diagram shows a thermistor in a potential divider. A voltmeter is connected across the thermistor. V The graph shows how the resistance…31 / 176
Question 77: A student sets up the circuit shown. The switch is open (off). X Y Z Which lamps are on and which lamps are off? lamp X lamp Y lamp Z A off…Question 78: An ammeter and an 18 Ω resistor are connected in series with a battery. The reading on the ammeter is 0.50 A. The resistance of the battery…Question 79: Which circuit includes a capacitor and what does the capacitor do in this circuit? what the circuit capacitor does A potential divider stor…32 / 176
Question 80: The diagram shows a thermistor in a potential divider. A voltmeter is connected across the thermistor. V The graph shows how the resistance…33 / 176
Question 81: A student sets up the circuit shown. The switch is open (off). X Y Z Which lamps are on and which lamps are off? lamp X lamp Y lamp Z A off…Question 82: The diagram shows a circuit used to find the resistance of lamp L. Blocks P, Q and R represent the different components used. 12 V P R L Q …34 / 176
Question 83: A student connects the circuit shown. 1 2 3 4 Which switches must be closed for the bell to ring without lighting the lamp? A 1 and 2 only …Question 84: Which row shows a use of a capacitor and a use of a relay? use of a capacitor use of a relay A switching circuit voltage transformation B t…Question 85: The diagram shows two voltmeters, P and Q, connected to a potential divider. V voltmeter P X V voltmeter Q The sliding connection at point …35 / 176
Question 86: A student connects the circuit shown. 1 2 3 4 Which switches must be closed for the bell to ring without lighting the lamp? A 1 and 2 only …Question 87: The diagram shows two voltmeters, P and Q, connected to a potential divider. V voltmeter P X V voltmeter Q The sliding connection at point …36 / 176
Question 88: The diagram shows a circuit used to find the resistance of lamp L. Blocks P, Q and R represent the different components used. 12 V P R L Q …Question 89: Which row shows a use of a capacitor and a use of a relay? use of a capacitor use of a relay A switching circuit voltage transformation B t…Question 90: The circuit shows a 24 V battery connected to two resistors in series. A R V The reading on the ammeter is 2.0 A and the reading on the vol…37 / 176
Question 91: A relay allows a small current in one circuit to control a different circuit. Which type of force is produced by the small current to activ…Question 92: The diagram shows a circuit containing two identical lamps. P Q R Which switches must be closed to light both of the lamps? A P and Q only …Question 93: The diagram shows a potential divider circuit. V The temperature of the thermistor increases. What happens to the resistance of the thermis…38 / 176
Question 94: Which circuit could be used to determine the resistance of the resistor R? A B V A R R A V C D V A R R V AQuestion 95: The diagram shows an electrical circuit. L M N P O Between which two points must a voltmeter be connected to find the potential difference …Question 96: The reading on the ammeter in the circuit is 1.0 A. A second ammeter is connected in the circuit. It also reads 1.0 A. At which labelled po…39 / 176
Question 97: The circuit shows a battery and four lamps. All the lamps are lit. One lamp fails and all the lamps go out. Which lamp failed? A B D CQuestion 98: An electric current can produce a heating effect and a magnetic effect. Which row shows the effect that a relay uses, together with one app…Question 99: A student investigates a circuit that contains two parallel resistors. The circuit includes meters R, S and T which are all connected corre…40 / 176
Question 100: A circuit contains the component shown by the following symbol. Which change would the component detect? A change in A light level. B poten…Question 101: The diagram shows a circuit which includes a switch and a capacitor. capacitor P switch Q What happens to the capacitor when the switch is …Question 102: The circuit diagram shows a cell connected to three identical lamps X, Y and Z. All the lamps are lit. X Z Y Lamp Y is removed by unscrewin…41 / 176
Question 103: Each branch of a domestic circuit often includes a circuit-breaker. This protects the wiring if too much current flows in the circuit. In w…Question 104: A student wants to make a transformer to step 12 V down to 6.0 V. She winds 60 turns of wire around an iron core as shown in the diagram. s…Question 105: The diagram shows an electrical circuit. L M N P O Between which two points must a voltmeter be connected to find the potential difference …42 / 176
Question 106: Which circuit could be used to determine the resistance of the resistor R? A B V A R R A V C D V A R R V AQuestion 107: The circuit shows a battery and four lamps. All the lamps are lit. One lamp fails and all the lamps go out. Which lamp failed? A B D CQuestion 108: The reading on the ammeter in the circuit is 1.0 A. A second ammeter is connected in the circuit. It also reads 1.0 A. At which labelled po…43 / 176
Question 109: A student wishes to measure first the electromotive force (e.m.f.) of a battery, and then the potential difference (p.d.) across a resistor…Question 110: When the thermistor in the circuit below is heated, the current in the lamp increases. Why does this happen? A The resistance of the lamp d…Question 111: A student connects various resistors in parallel pairs. Underneath each diagram is a statement about the total resistance of each pair of r…44 / 176
Question 112: The circuit shown contains a relay. Both lamps are initially off. lamp 2 switch S relay lamp 1 When switch S is closed, the relay operates.…Question 113: The diagram shows the connections to an electric heater. Three fuses have been added to the circuit. heating element plastic fuse 1 case li…Question 114: A student wishes to measure first the electromotive force (e.m.f.) of a battery, and then the potential difference (p.d.) across a resistor…45 / 176
Question 115: When the thermistor in the circuit below is heated, the current in the lamp increases. Why does this happen? A The resistance of the lamp d…Question 116: The circuit shown contains a relay. Both lamps are initially off. lamp 2 switch S relay lamp 1 When switch S is closed, the relay operates.…46 / 176
Question 117: A student connects various resistors in parallel pairs. Underneath each diagram is a statement about the total resistance of each pair of r…Question 118: A student wishes to measure first the electromotive force (e.m.f.) of a battery, and then the potential difference (p.d.) across a resistor…Question 119: The diagram shows an electrical component. What is it? A a capacitor B a light-dependent resistor C a thermistor D a variable resistor47 / 176
Question 120: The diagram shows a circuit. A What should be increased to increase the current in the circuit? A the e.m.f. of the battery B the length of…Question 121: The circuit shown contains a relay. Both lamps are initially off. lamp 2 switch S relay lamp 1 When switch S is closed, the relay operates.…48 / 176
Question 122: The diagram shows an incomplete circuit. X Y A Four wires of different length and thickness are connected in turn between point X and point…Question 123: The diagram shows a circuit containing a battery, a lamp, a switch and another component X. The switch is initially closed and the lamp is …49 / 176
Question 124: The diagram shows a circuit containing three lamps and three switches S1, S2 and S3. lamp 1 S1 S2 lamp 2 S3 lamp 3 Lamp 1 and lamp 3 are li…Question 125: The diagram shows part of an electric circuit. 12 V V 0 V The light falling on the light-dependent resistor (LDR) increases in brightness. …50 / 176
Question 126: Which labelled component in the circuit shown controls the brightness of lamp X? A V X B C DQuestion 127: An appliance is connected to a mains supply. Its circuit also contains a switch and a fuse. Which circuit shows the fuse in the correct pos…Question 128: The diagram shows a lamp and a resistor connected in a circuit. The lamp is too bright. Which change to the circuit will decrease the curre…51 / 176
Question 129: Which statement is not correct for lamps connected in parallel? A They can be switched on and off separately. B They will remain bright if …Question 130: A student connects a circuit using an uncharged capacitor C, with a large capacitance, and a resistor R, with a high resistance. The switch…Question 131: Which labelled component in the circuit shown controls the brightness of lamp X? A V X B C D52 / 176
Question 132: In the circuit shown, the current from the battery divides equally between the two lamps. Each ammeter reads 6.0 A. A A What is a suitable …Question 133: The diagram shows a circuit containing three lamps and three switches S1, S2 and S3. lamp 1 S1 S2 lamp 2 S3 lamp 3 Lamp 1 and lamp 3 are li…Question 134: Which labelled component in the circuit shown controls the brightness of lamp X? A V X B C D53 / 176
Question 135: The diagram shows part of an electric circuit. 12 V V 0 V The light falling on the light-dependent resistor (LDR) increases in brightness. …Question 136: The diagram shows an incomplete circuit. X Y A Four wires of different length and thickness are connected in turn between point X and point…54 / 176
Question 137: The diagram shows a circuit containing a battery, a lamp, a switch and another component X. The switch is initially closed and the lamp is …Question 138: An appliance is connected to a mains supply. Its circuit also contains a switch and a fuse. Which circuit shows the fuse in the correct pos…55 / 176
Question 139: A student carries out an experiment to investigate the resistance of a resistor R. She takes a series of readings of potential difference (…Question 140: The diagram shows a circuit with a 3.0 Ω resistor and a 2.0 Ω resistor connected in parallel. 6.0 V A 3.0 Ω 2.0 Ω The switch is open, and t…56 / 176
Question 141: The diagram shows a torch containing two cells, a switch and a lamp. cells plastic case brass connecting switch strip lamp Which is the cir…Question 142: An engineer uses the potential divider shown in the diagram. He needs the output voltage to be one tenth ( 10 1 ) of the input voltage. X i…Question 143: The current in a kettle is 10 A and it is protected by a 13 A fuse. The owner of the kettle replaces the 13 A fuse with a 3 A fuse. What ha…57 / 176
Question 144: The diagram shows a circuit with a 3.0 Ω resistor and a 2.0 Ω resistor connected in parallel. 6.0 V A 3.0 Ω 2.0 Ω The switch is open, and t…Question 145: The diagram shows a torch containing two cells, a switch and a lamp. cells plastic case brass connecting switch strip lamp Which is the cir…58 / 176
Question 146: An engineer uses the potential divider shown in the diagram. He needs the output voltage to be one tenth ( 10 1 ) of the input voltage. X i…Question 147: A student carries out an experiment to investigate the resistance of a resistor R. She takes a series of readings of potential difference (…59 / 176
Question 148: A 30 Ω resistor is connected in series with another resistor and a 6.0 V battery. The current in the circuit is 0.12 A. A voltmeter is conn…Question 149: A circuit contains four ammeters A, B, C and D, and three resistors with different values. Which ammeter shows the largest reading? A A D 1…Question 150: The diagram shows a torch containing two cells, a switch and a lamp. cells plastic case brass connecting switch strip lamp Which is the cir…60 / 176
Question 151: The diagram shows a circuit with a fixed resistor connected in series with a light-dependent resistor (LDR). A voltmeter is connected acros…Question 152: A student wishes to determine the resistance of a resistor. She uses an ammeter and a voltmeter in a circuit. In which circuit are the amme…61 / 176
Question 153: A battery is connected to two crocodile clips and a lamp. There is a gap between the crocodile clips. crocodile clips Four cylinders W, X, …Question 154: In which circuit can the lamps be switched on and off independently? A B C D62 / 176
Question 155: Two resistors, with resistances R1 and R2, are connected in parallel. The resistance R1 is greater than the resistance R2. R1 R2 What is th…Question 156: In the circuit shown, the switch is closed for a long time, then opened. voltmeter 1 V resistor capacitor V V voltmeter 2 voltmeter 3 Immed…Question 157: The circuit diagram shows a 4.0 Ω resistor and an 8.0 Ω resistor connected to a 6.0 V battery. 6.0 V 4.0 Ω 8.0 Ω What is the current in the…63 / 176
Question 158: The diagram shows a circuit which includes an uncharged capacitor and a switch. Y X switch capacitor The switch can be moved between positi…Question 159: The diagram shows a 3.0 Ω resistor and a 6.0 Ω resistor connected in parallel. 3.0 Ω 6.0 Ω What is the total resistance of this arrangement…Question 160: The diagram shows a 10 Ω resistor and a 20 Ω resistor connected in a potential divider circuit. 10 Ω 12.0 V 20 Ω V What is the reading on t…64 / 176
Question 161: In the circuit shown, only one of the fuses has blown, but none of the lamps is lit. Which fuse has blown? power supply A B C DQuestion 162: The circuit diagram shows a 4.0 Ω resistor and an 8.0 Ω resistor connected to a 6.0 V battery. 6.0 V 4.0 Ω 8.0 Ω What is the potential diff…65 / 176
Question 163: The diagram shows a circuit which includes an uncharged capacitor and a switch. Y X switch capacitor The switch can be moved between positi…Question 164: Two 5.0 Ω resistors are connected as shown in the diagram. 5.0 Ω 5.0 Ω What is the total resistance of this combination? A less than 5.0 Ω …Question 165: The diagram shows a 10 Ω resistor and a 20 Ω resistor connected in a potential divider circuit. 10 Ω 12.0 V 20 Ω V What is the reading on t…66 / 176
Question 166: In the circuit shown, only one of the fuses has blown, but none of the lamps is lit. Which fuse has blown? power supply A B C DQuestion 167: The circuit diagram shows a 4.0 Ω resistor and an 8.0 Ω resistor connected to a 6.0 V battery. 6.0 V 4.0 Ω 8.0 Ω What is the current in the…67 / 176
Question 168: The diagram shows a circuit which includes an uncharged capacitor and a switch. Y X switch capacitor The switch can be moved between positi…Question 169: Which component is represented by this circuit symbol? A a bell B a fuse C a relay D a transformerQuestion 170: The diagram shows a 10 Ω resistor and a 20 Ω resistor connected in a potential divider circuit. 10 Ω 12.0 V 20 Ω V What is the reading on t…68 / 176
Question 171: In the circuit shown, only one of the fuses has blown, but none of the lamps is lit. Which fuse has blown? power supply A B C DQuestion 172: A student uses the circuit shown to determine the resistance of the two identical resistors. A V The voltmeter reading is 2.2 V and the amm…Question 173: Which component is represented by this circuit symbol? A a bell B a fuse C a relay D a transformer69 / 176
Question 174: A student sets up this circuit. What is the purpose of the circuit? A to allow a lamp to be made dimmer or brighter as required B to amplif…Question 175: In an electrical circuit, what is the purpose of a fuse? A to connect the metal case of an appliance to the earth B to cut off the electric…Question 176: What is the circuit symbol for a variable resistor? A B C DQuestion 177: The diagram shows a circuit containing three ammeters P, Q and R. P A Q A R A Which statement about the readings on the ammeters is correct…70 / 176
Question 178: The diagram shows a light-dependent resistor (LDR) connected in a potential divider circuit. V The brightness of the light falling on the L…Question 179: Four lamps are each labelled '60 W 230 V'. In which circuit are the lamps connected so that they operate at normal brightness? A B C D 230 …71 / 176
Question 180: Which circuit shows a voltmeter measuring the p.d. across a resistor? A B V V C D V VQuestion 181: A student has four pieces of resistance wire made of the same material. Each piece is connected in turn between the terminals X and Y in th…72 / 176
Question 182: A student connects the circuit shown. 1 2 3 4 Which switches must be closed for both the bell to ring and the lamp to light? A 1 and 4 only…Question 183: Two resistors are connected in parallel. 20 Ω 30 Ω Which value could be the resistance of the combination? A 12 Ω B 20 Ω C 25 Ω D 50 ΩQuestion 184: The circuit contains a variable potential divider PQ, a lamp and a voltmeter. power supply + – P Q sliding contact V The sliding contact of…73 / 176
Question 185: Four lamps are each labelled '60 W 230 V'. In which circuit are the lamps connected so that they operate at normal brightness? A B C D 230 …Question 186: The circuit shown contains a battery, a 6.0 Ω resistor and two meters X and Y. One meter records current and one meter records potential di…Question 187: A student designs a circuit to switch on a lamp after a time delay. Which components are used in a time-delay circuit? A a light-dependent …74 / 176
Question 188: Identical resistors are connected together to form arrangements X, Y and Z. arrangement X arrangement Y arrangement Z What is the correct o…Question 189: The diagram shows a potential divider circuit. V P V Q The resistance of the variable resistor is increased. Which row shows what happens t…Question 190: Four lamps are each labelled '60 W 230 V'. In which circuit are the lamps connected so that they operate at normal brightness? A B C D 230 …75 / 176
Question 191: Four lamps are each labelled 240 V. In which circuit do all four lamps have normal brightness? A B 240 V 240 V C D 240 V 240 VQuestion 192: The diagram shows a 40 Ω resistor and a 60 Ω resistor connected in parallel. 60 Ω P Q 40 Ω What is the total resistance between points P an…76 / 176
Question 193: The diagram shows a potential divider connected to two voltmeters P and Q. V voltmeter P V voltmeter Q The resistance of the variable resis…Question 194: The circuit shown includes two meters X and Y, connected correctly. X Y Which row gives the unit of the quantity measured by X and the unit…77 / 176
Question 195: What is the function of a relay? A to allow a current in one circuit to operate a switch in another circuit B to prevent an electric shock …Question 196: The circuit shown contains three ammeters X, Y and Z. X A Z A 10 Ω A 20 Ω Y Which ammeter has the largest reading? A X B Y C Z D They all h…Question 197: The diagram shows part of a circuit used to switch street lamps on and off automatically. + LDR – In the evening it gets dark. Which row sh…78 / 176
Question 198: A domestic circuit includes a 30 A fuse. This protects the wiring if there is too much current in the circuit. In which wire is the 30 A fu…Question 199: Two meters are connected in a circuit to measure the current in a component and the potential difference across the component. Which meters…Question 200: P and Q are the circuit symbols for two electrical components. P Q Which components are represented by P and by Q? P Q A thermistor fuse B …Question 201: The diagram shows two resistors connected in a circuit. 6.0 Ω 12 Ω What could be the combined resistance of this arrangement of resistors? …79 / 176
Question 202: The diagram shows part of a circuit used to switch street lamps on and off automatically. + LDR – In the evening it gets dark. Which row sh…Question 203: A domestic circuit includes a 30 A fuse. This protects the wiring if there is too much current in the circuit. In which wire is the 30 A fu…80 / 176
Question 204: The diagram shows a battery connected to two resistors. R Four students separately measure the electromotive force (e.m.f.) of the battery,…Question 205: Why are lamps in a house lighting circuit connected in parallel rather than in series? A If one lamp stops working, the remaining lamps bec…Question 206: The diagram shows a cell connected to two 6.0 Ω resistors. Three currents, I1, I2 and I3, are labelled. I1 6.0 Ω I2 6.0 Ω I3 Which row corr…81 / 176
Question 207: The diagram shows part of a circuit used to switch street lamps on and off automatically. + LDR – In the evening it gets dark. Which row sh…Question 208: The diagram shows a lamp in a circuit. P Which change to the circuit would increase the current in the lamp? A adding another resistor in p…Question 209: An ammeter and an 18 Ω resistor are connected in series with a battery. The reading on the ammeter is 0.50 A. A 18 Ω What is the electromot…82 / 176
Question 210: A source of constant electromotive force (e.m.f.) is connected across a thermistor. There is an electric current in the thermistor. current…Question 211: The diagram shows a circuit containing a battery, a resistor with high resistance, a switch and a lamp. 12 V battery 12 V resistor lamp Ini…83 / 176
Question 212: The diagram shows a circuit containing two identical lamps and three ammeters. ammeter 1 A A ammeter 3 A ammeter 2 The current in ammeter 1…Question 213: The diagram shows a lamp in a circuit. P Which change to the circuit would increase the current in the lamp? A adding another resistor in p…Question 214: An ammeter and an 18 Ω resistor are connected in series with a battery. The reading on the ammeter is 0.50 A. A 18 Ω What is the electromot…84 / 176
Question 215: A source of constant electromotive force (e.m.f.) is connected across a light-dependent resistor (LDR). There is an electric current in the…Question 216: The diagram shows an electric circuit. R S T switch When the switch is open, which lamp or lamps are not lit? A R only B S only C R, S and …85 / 176
Question 217: In which circuit does the ammeter read 2.0 A? A B 12 V 12 V A A 6.0 Ω 6.0 Ω 3.0 Ω 3.0 Ω C D 6.0 V 18 V A A 6.0 Ω 6.0 Ω 3.0 Ω 3.0 ΩQuestion 218: The diagram shows a lamp in a circuit. P Which change to the circuit would increase the current in the lamp? A adding another resistor in p…Question 219: An ammeter and an 18 Ω resistor are connected in series with a battery. The reading on the ammeter is 0.50 A. A 18 Ω What is the electromot…86 / 176
Question 220: In which circuit will the ammeter reading be greatest? A B C D 2.0 V 2.0 V 2.0 V 2.0 V A A 2.0 Ω A 2.0 Ω A 2.0 Ω 2.0 Ω 2.0 Ω 2.0 Ω 2.0 Ω 2.…Question 221: The diagram shows a potential divider. 6 V 0 V When brighter light falls on the light-dependent resistor (LDR), its resistance changes. Wha…87 / 176
Question 222: In the circuits shown, each of the resistors has a resistance of 1.0 Ω. Which circuit has the greatest resistance? A B C DQuestion 223: The diagram shows an electric circuit. V The light falling on the light-dependent resistor (LDR) increases in brightness. What happens to t…88 / 176
Question 224: The diagram shows two linked circuits to control when a bell is switched on. The conditions are altered and only one pair of conditions cau…Question 225: In this circuit, a component at X automatically protects the wiring from overheating if there is a fault. electrical supply Which row ind…Question 226: The circuit shows a 2.0 Ω resistor and a 1.0 Ω resistor connected to a 12 V battery. 12 V 2.0 Ω 1.0 Ω What is the current in the 2.0 Ω resi…89 / 176
Question 227: A computer engineer wants the speed of a fan to increase automatically when the temperature inside a computer rises. The engineer knows tha…Question 228: The diagram shows a power supply with a constant electromotive force (e.m.f.). It is connected to a voltmeter, a variable resistor and two …90 / 176
Question 229: A student connects a variable potential divider (potentiometer) circuit. R T V 12 V S As the sliding terminal T is moved from R to S, what …Question 230: A light-dependent resistor (LDR) and a resistor R are connected in a series circuit. Light falls on the LDR. A R The brightness of the ligh…91 / 176
Question 231: The circuit diagram shows three resistors connected in series across a 6.0 V supply. 6.0 V 3.0 Ω 4.0 Ω 5.0 Ω What is the potential differen…Question 232: A thermistor is connected in series with a sensitive ammeter and a battery. thermistor A Which change will give a larger ammeter reading? A…Question 233: Three ammeters measure the currents in different parts of the circuit shown. The diagram indicates the reading on the ammeters. 18 Ω A 3.0 …92 / 176
Question 234: A student connects a variable potential divider (potentiometer) circuit. R T V 12 V S What happens to the reading on the voltmeter as the s…Question 235: The diagram shows an electric circuit. 20 Ω 0.40 A 10 Ω What is the potential difference (p.d.) across the LDR? A 4.0 V B 8.0 V C 25 V D 50…Question 236: The diagram shows a circuit containing two resistors of resistance 1.0 Ω and 2.0 Ω. A voltmeter is connected across the 1.0 Ω resistor by c…93 / 176
Question 237: The circuit diagram shows a simple circuit with a battery of electromotive force (e.m.f.) 6.0 V and two bulbs each of resistance 2.0 Ω. amm…Question 238: The diagram shows three identical heating elements connected to a power supply. switch 1 switch 2 switch 3 power supply Which arrangement o…94 / 176
Question 239: A student connects a variable potential divider (potentiometer) circuit. R T V 12 V S What happens to the reading on the voltmeter as the s…Question 240: The diagram shows a circuit used to make a light detector. A X Y One component is connected between X and Y. Which component causes the amm…Question 241: What is the purpose of a relay? A to change a large voltage into a small voltage B to change a small voltage into a large voltage C to use …Question 242: A student connects a circuit with a power supply, a lamp and an ammeter. Where must the ammeter be connected? A in parallel with the lamp t…95 / 176
Question 243: Two 3.0 Ω resistors are connected in parallel. Which statement about their combined resistance is correct? A The combined resistance is les…Question 244: The diagram shows a potential divider circuit. X Z slider V Y How does the movement of the slider affect the voltmeter reading? movement vo…Question 245: The diagram shows a circuit with a fixed resistor connected in series with a thermistor and an ammeter. A Which row shows how temperature c…96 / 176
Question 246: An appliance is connected to a mains supply. Its circuit also contains a switch and a fuse. Which circuit shows the fuse in the correct pos…Question 247: Which circuit can be used to determine the resistance of resistor R? A B C D V V A A V R R R V R A AQuestion 248: The circuit diagram shows a 4.0 Ω resistor and an 8.0 Ω resistor connected to a 6.0 V battery. 6.0 V 4.0 Ω 8.0 Ω What is the potential diff…97 / 176
Question 249: The diagram shows a motor and a light-dependent resistor (LDR) connected in a circuit. M Which change decreases the current in the motor so…Question 250: The diagram shows a circuit with a fixed resistor connected in series with a thermistor and an ammeter. A Which row shows how temperature c…98 / 176
Question 251: The diagram shows a circuit symbol for a component that can be used as an input transducer. Which graph shows how the resistance of the com…Question 252: Which statement is not correct for two identical lamps connected in parallel? A The potential difference across each lamp is half the suppl…Question 253: Only one of the ammeters in the circuit is showing an incorrect reading. Which ammeter is showing the incorrect reading? ammeter A: reading…99 / 176
Question 254: The diagram shows a circuit with a fixed resistor connected in series with a thermistor and an ammeter. A Which row shows how temperature c…Question 255: The diagram shows a cell connected to three resistors R1, R2 and R3. position 1 position 4 R1 R2 position 2 position 3 R3 A student connect…100 / 176
Question 256: The diagram shows three identical resistors, three ammeters and a battery, connected in a circuit. ammeter 1 A ammeter 2 A A ammeter 3 What…Question 257: A student sets up this circuit. What is the purpose of the circuit? A to allow a lamp to be made dimmer or brighter as required B to amplif…101 / 176
Question 258: The diagram shows two voltmeters P and Q connected to a potential divider. V voltmeter P X V voltmeter Q The sliding connection at point X …Question 259: A lamp is connected across one cell, then across two cells. The potential difference (p.d.) across the lamp and the current in it are measu…Question 260: Which electrical component does the symbol represent? A a fuse B a relay coil C a thermistor D a variable resistor102 / 176
Question 261: A student sets up this circuit. What is the purpose of the circuit? A to allow a lamp to be made dimmer or brighter as required B to amplif…Question 262: The diagram shows two voltmeters P and Q connected to a potential divider. V voltmeter P X V voltmeter Q The sliding connection at point X …Question 263: A battery in an electric circuit is connected to a lamp. Chemical energy in the battery is transferred to which other types of energy? A in…103 / 176
Question 264: Which component is represented by the symbol shown? A fixed resistor B fuse C thermistor D variable resistorQuestion 265: A student sets up a circuit which she calls circuit 1. She records the value of the current I1, and calculates the resistance R1 of the cir…Question 266: A student sets up this circuit. What is the purpose of the circuit? A to allow a lamp to be made dimmer or brighter as required B to amplif…104 / 176
Question 267: The diagram shows two voltmeters P and Q connected to a potential divider. V voltmeter P X V voltmeter Q The sliding connection at point X …Question 268: The resistance of a component in a circuit is found using an ammeter and a voltmeter. How are the ammeter and the voltmeter connected? A th…Question 269: The diagram shows a circuit with a power supply and four components. + – N What is component N? A fixed resistor B fuse C thermistor D vari…105 / 176
Question 270: Two lamps are connected in parallel. S1 S2 S3 Which switches must be closed so that both lamps light? A S1 and S2 only B S1 and S3 only C S…Question 271: The circuit diagram shows a variable potential divider. P Q slider V The slider is moved from P towards Q. What happens to the reading on t…106 / 176
Question 272: A student investigates the resistance of a lamp. Which row states how the meters must be connected? ammeter voltmeter A in parallel with th…Question 273: A lamp is connected into a circuit so that the potential difference across it can be varied from 0 to 12 V. Which circuit is suitable? A B …Question 274: The diagram shows a circuit. A Which statement describes and explains how the circuit behaves? A The ammeter reading decreases when the lig…Question 275: Which component uses a small direct current (d.c.) in one circuit to switch on a much larger current in a second circuit? A potential divid…107 / 176
Question 276: The diagram shows part of a circuit which contains an ammeter, a voltmeter and a resistor R. The ammeter and the voltmeter are in the corre…Question 277: The diagram shows a potential divider used to control the brightness of a lamp. What happens as the slider on the potential divider is move…108 / 176
Question 278: The diagram shows three identical resistors connected to a battery. ammeter 1 A ammeter 3 A ammeter 2 A Which row gives the possible readin…Question 279: A 4 Ω resistor and a 2 Ω resistor are connected to a 12 V battery in a circuit. 4 Ω 12 V 2 Ω What is the current in the 2 Ω resistor? A 0.5…Question 280: Which statement about a voltmeter is correct? A A voltmeter measures the current in a component and is connected in series with the compone…109 / 176
Question 281: Four wires are made from the same metal. Which wire has the lowest resistance? length of diameter of wire / cm wire / mm A 20 0.20 B 20 0.4…Question 282: A student sets up a circuit containing a battery of two cells and three lamps, as shown. – + – + What is the circuit diagram for this arran…Question 283: The diagrams show different resistor arrangements. Which arrangement has the smallest combined resistance? A B C D 10 Ω 10 Ω 10 Ω 10 Ω 10 Ω…110 / 176
Question 284: The diagram shows a potential divider circuit. V P V Q The resistance of the variable resistor is increased. Which row shows what happens t…Question 285: The diagram shows a transformer connected to a 240 V a.c. supply. soft-iron core primary coil secondary coil 60 turns 30 turns 240 V a.c. W…Question 286: A voltmeter and an ammeter are used to measure the resistance of a resistor. Which diagram shows the voltmeter and the ammeter correctly co…111 / 176
Question 287: A student sets up four circuits. In which circuit is there a heater in series with a fuse? A B C DQuestion 288: The diagram shows a circuit containing a d.c. power supply, a motor and a variable resistor. Three ammeters X, Y and Z show the current in …112 / 176
Question 289: A lamp is to be connected in a circuit so that the potential difference (p.d.) across it can be varied from 0 to 6 V. Which circuit would b…Question 290: An ammeter and a voltmeter are used to determine the resistance of a resistor. Which circuit diagram shows the ammeter and the voltmeter co…113 / 176
Question 291: The diagram shows a circuit. What is connected in parallel with the thermistor? A heater B lamp C light-dependent resistor D variable resis…Question 292: The circuit shows a relay being used to operate a mains lamp. Two ammeters are labelled P and Q. P Q A A mains lamp The variable resistor i…114 / 176
Question 293: A lamp is to be connected in a circuit so that the potential difference (p.d.) across it can be varied from 0 to 6 V. Which circuit would b…Question 294: A battery stores chemical potential energy. The battery is connected to a resistor. As the battery runs down, what happens to its chemical …115 / 176
Question 295: The diagram shows a circuit including a lamp, an electric bell and three switches S1, S2 and S3. The lamp and bell are not faulty. S1 S2 S3…Question 296: A student is designing a lighting circuit for a dolls’ house. He sets up two different circuits. Each circuit contains a 12 V power supply …116 / 176
Question 297: A lamp is to be connected in a circuit so that the potential difference (p.d.) across it can be varied from 0 to 6 V. Which circuit would b…Question 298: A simple wiring diagram for an electric cooker is shown. electric cooker metal casing live neutral earth connection to casing Why is there …Question 299: Which device relies upon the magnetic effect of an electric current? A fuse B relay C thermistor D variable resistor117 / 176
Question 300: The circuit shows two lamps connected to a d.c. supply. The same lamps and power supply are arranged in different ways, as shown. P Q R In …Question 301: Identical resistors are connected together to form arrangements X, Y and Z. X Y Z What is the correct order of the resistances of the arran…118 / 176
Question 302: A student uses 100 cm of resistance wire XY in a circuit to make a potential divider. X sliding contact l V Y He changes the length of wire…Question 303: Where must a fuse be connected in a mains electric circuit? A the earth wire only B the live wire only C the neutral wire only D the live w…119 / 176
Question 304: A student determines the resistance of an electric lamp. He measures the current in the lamp and the potential difference (p.d.) across it.…Question 305: Identical resistors are connected together to form arrangements X, Y and Z. X Y Z What is the correct order of the resistances of the arran…Question 306: The circuit shows a wire WX connected to a cell. 100 cm W X V The potential difference (p.d.) between W and X is 1.5 V. What is the reading…120 / 176
Question 307: A resistor is connected to a battery. There is a current in the resistor. What is the main energy change? A Chemical energy is converted in…Question 308: Lamps X and Y are designed to operate at normal brightness when each are connected to a 3.0 V supply. Lamp Z is designed to operate at norm…Question 309: Identical resistors are connected together to form arrangements X, Y and Z. X Y Z What is the correct order of the resistances of the arran…121 / 176
Question 310: Which circuit shows a variable resistor used to control the brightness of a lamp? A B C DQuestion 311: Where must a fuse be connected in a mains electric circuit? A the earth wire only B the live wire only C the neutral wire only D the live w…Question 312: A step-up transformer produces a 60 V a.c. output from a 12 V a.c. input. There are 50 turns on the secondary coil. How many turns are ther…Question 313: A student uses the circuit shown to determine the resistance of two identical resistors. A V The voltmeter reading is 2.2 V and the ammeter…122 / 176
Question 314: In the circuit shown, A1 and A2 are ammeters. A1 A2 S Switch S is closed. Which row is correct? the resistance of reading of A1 reading of …Question 315: What happens to the resistance of an LDR when the brightness of light falling on it increases? A Its resistance decreases. B Its resistance…Question 316: A student constructs four circuits, each containing a fuse. The fuse blows in one circuit and both lamps in the circuit go out. In which ci…123 / 176
Question 317: The diagram shows a circuit. The wire between P and Q can be removed and replaced by a circuit component. P Q R S T Where should a voltmete…Question 318: A student uses the circuit shown to determine the resistance of two identical resistors. A V The voltmeter reading is 2.2 V and the ammeter…124 / 176
Question 319: The circuit shown contains five lamps J, K, L, M and N. All the lamps are glowing. lamp L lamp K lamp J lamp N lamp M One lamp is removed a…Question 320: The diagram shows a control circuit. The lamp is lit. The temperature of the surroundings increases. What will happen to the brightness of …125 / 176
Question 321: A student constructs four circuits, each containing a fuse. The fuse blows in one circuit and both lamps in the circuit go out. In which ci…Question 322: A student uses the circuit shown to determine the resistance of two identical resistors. A V The voltmeter reading is 2.2 V and the ammeter…Question 323: The diagram shows part of a circuit containing three identical lamps. X W Z Y At which two points do the currents have the same value? A W …126 / 176
Question 324: Which circuit contains a thermistor and a heater? A B C DQuestion 325: A student constructs four circuits, each containing a fuse. The fuse blows in one circuit and both lamps in the circuit go out. In which ci…127 / 176
Question 326: A student uses four ammeters P, Q, R and S to measure the current in different parts of the circuit shown. P Q A A R A S A Which two ammete…Question 327: A circuit X is set up with two identical lamps. Circuit Y is then set up, changing the positions of the meters. X Y A A V V On which meters…Question 328: An electrical appliance is powered from a mains supply. The appliance normally uses a current of 3 A, but the current briefly rises to 4 A …128 / 176
Question 329: A transformer is needed to convert a supply of 240 V a.c. into 4800 V a.c.. NP NS 240 V a.c. 4800 V a.c. Which pair of coils would be suita…Question 330: There is a current in a variable resistor when a potential difference (p.d.) is applied across it. In which situation is the current increa…Question 331: The circuit shown includes a battery, three lamps X, Y and Z and three switches S1, S2 and S3. lamp X S1 S2 lamp Y S3 lamp Z Lamp X is off …129 / 176
Question 332: A student uses four ammeters P, Q, R and S to measure the current in different parts of the circuit shown. P Q A A R A S A Which two ammete…Question 333: An electrical appliance is powered from a mains supply. The appliance normally uses a current of 3 A, but the current briefly rises to 4 A …Question 334: A transformer is needed to convert a supply of 240 V a.c. into 4800 V a.c.. NP NS 240 V a.c. 4800 V a.c. Which pair of coils would be suita…130 / 176
Question 335: Each diagram shows part of a circuit. The circle represents an instrument used to measure the potential difference (p.d.) across the resist…Question 336: A student uses four ammeters P, Q, R and S to measure the current in different parts of the circuit shown. P Q A A R A S A Which two ammete…Question 337: Three statements about a relay are given. 1 A relay has a coil that becomes a temporary magnet when in operation. 2 A large current in a re…Question 338: An electrical appliance is powered from a mains supply. The appliance normally uses a current of 3 A, but the current briefly rises to 4 A …131 / 176
Question 339: A length of metal wire is used as a resistor in a circuit. Which change to the wire results in an increase in current in the circuit? A con…Question 340: The diagram shows a circuit containing a power supply, a lamp and a motor. Three ammeters measure the current at different points in the ci…Question 341: A student designs a circuit to use as a dimmer switch for a lamp. X Y What happens to the brightness of the lamp and the potential differen…132 / 176
Question 342: Which electrical component is connected in series with an electric circuit to protect it from damage by a very large current? A earth wire …Question 343: The diagram shows an electromagnet near a coil of wire connected to a voltmeter. The reading on the voltmeter is zero. electromagnet coil s…Question 344: A student connects a circuit with a resistor X. The reading on the ammeter is 2.0 A. The reading on the voltmeter is 6.0 V. A X V She needs…133 / 176
Question 345: The diagram shows a circuit containing a battery, an ammeter, three switches, S1, S2 and S3, and three identical lamps. A S1 S2 S3 With onl…Question 346: Two 10  resistors are connected in series and then in parallel. What is the combined resistance in each case? resistance in resistance in …134 / 176
Question 347: The diagram shows an electric circuit. When the switch is closed, the lamp is lit. Which row states the type of energy stored in the cell a…Question 348: In which circuit is the ammeter measuring the flow of charge through the lamp? A B C D A A A AQuestion 349: In circuit 1, a negative charge flows in a clockwise direction. The bulb is bright. In circuit 2, the battery is reversed as shown. The bul…135 / 176
Question 350: The diagram shows a circuit containing two resistors of resistance 1.0  and 2.0 . A voltmeter is connected across the 1.0  resistor by c…Question 351: Which circuit contains a fuse? A B A V C D A136 / 176
Question 352: The diagram shows an electric circuit. Which row correctly shows the numbers of different components in the circuit? cells lamps switches A…Question 353: Two resistors, with resistances R1 and R2, are connected in parallel. The resistance R1 is greater than the resistance R2. R1 R2 What is th…Question 354: The current in a small electric heater is 4.0 A. The cable connected to the heater is able to carry currents up to 10 A. Fuses rated 1 A, 3…Question 355: Which circuit symbol represents a component used to measure electric current? A B C D A G V137 / 176
Question 356: Four wires made of the same metal have different lengths and different diameters. Which wire has the lowest resistance? length diameter A l…Question 357: The diagram shows a circuit containing two resistors of resistance 1.0  and 2.0 . A voltmeter is connected across the 1.0  resistor by c…Question 358: Which device is used to measure the flow of charge in an electrical circuit? A ammeter B voltmeter C battery D newton meter138 / 176
Question 359: Which circuit contains a fuse? A B A V C D AQuestion 360: A student designs a circuit to turn on a fan when the temperature increases. Which component does the student need to use in her circuit? A…Question 361: Two resistors, with resistances R1 and R2, are connected in parallel. The resistance R1 is greater than the resistance R2. R1 R2 What is th…139 / 176
Question 362: The diagram shows a motor connected to an a.c. supply. The circuit is incomplete. X Y M Which device needs to be connected between point X …Question 363: An electric drill, operating from a supply voltage of 240 V, uses a current of 3.5 A. Which rating of fuse should be used to protect the dr…Question 364: The diagram shows a circuit containing two resistors of resistance 1.0  and 2.0 . A voltmeter is connected across the 1.0  resistor by c…140 / 176
Question 365: Which circuit contains a fuse? A B A V C D AQuestion 366: A student sets up the circuit shown, with a gap XY. X Y The student wishes to connect a component between X and Y to enable her to vary the…141 / 176
Question 367: Two resistors, with resistances R1 and R2, are connected in parallel. The resistance R1 is greater than the resistance R2. R1 R2 What is th…Question 368: Circuit breakers and fuses are devices used to protect a circuit from overloading. Which statement correctly describes the difference betwe…Question 369: Which labelled component in the circuit shown controls the brightness of lamp X? A V X B C D142 / 176
Question 370: A circuit includes a battery, two identical resistors and five ammeters, P, Q, R, S and T. P Q A A R A S T A A Which statement about the re…Question 371: An electrician sets up a potential divider circuit in a fridge so that when the fridge door is open and light from the room enters the frid…Question 372: A simple wiring diagram for an electric cooker is shown. electric cooker metal case live neutral earth connection to casing Why is there a …143 / 176
Question 373: Three statements about a.c. and d.c. currents are given. 1 A d.c. current is in one direction only whilst an a.c. current repeatedly change…Question 374: Which arrangement can be used to step up a voltage? A B iron core iron core a.c. d.c. output output input input C D iron core iron core a.c…Question 375: The circuit shown is being used to measure the resistance of resistor Z. Y Z X What is the correct combination of meters to determine the r…144 / 176
Question 376: The diagram shows the circuit diagram symbol of an electrical component. Which component does the symbol represent? A light-dependent resis…Question 377: What is the advantage of connecting lamps in parallel in a lighting circuit? A A smaller fuse is needed to protect the lamps. B If the fila…Question 378: The diagram shows a circuit of six identical lamps connected to a battery. S Q P T R U Which lamps are brightest? A P only B Q and R only C…Question 379: Why is a fuse used in an electrical circuit? A so that the current can have only one value B to prevent the current becoming too large C to…145 / 176
Question 380: Which transformer can change a 240 V a.c. input into a 15 V a.c. output? A B 800 turns 40 turns 1000 turns 25 turns C D 2400 turns 15 turns…Question 381: A current-carrying coil in a magnetic field experiences a turning effect. Three suggestions for increasing the turning effect are given. 1 …Question 382: Four circuits are set up. In which circuit does the meter measure the potential difference (p.d.) across the resistor? A B C D V A A V146 / 176
Question 383: Which circuit is correctly labelled? A B battery cell ammeter galvanometer A light-dependent resistor relay A V ammeter voltmeter C D cell …Question 384: The diagram shows an electric circuit. X IX Y IY IX is the current in resistor X. IY is the current in resistor Y. Which statement describe…147 / 176
Question 385: The diagram shows a battery connected to a potential divider and to two lamps, P and Q. P X Y Q The slider on the potential divider is move…Question 386: Which circuit shows a meter being used correctly to measure the current in a resistor? A B C D A V A VQuestion 387: A resistor and a battery are connected in series. The value of the resistor is 20 . The potential difference (p.d.) of the battery is 4.0 …148 / 176
Question 388: The circuit shown includes a cell. Which other components does the circuit contain? A lamp, voltmeter and switch B resistor, thermistor and…Question 389: Two 4  resistors are connected in parallel. 4 Ω X Y 4 Ω What is the combined resistance between X and Y? A less than 4  B 4  C 8  D mor…Question 390: Which statement about identical lamps in a parallel circuit is not correct? A If one lamp blows, the others remain switched on. B The curre…Question 391: Why is a fuse used in an electrical circuit? A so that the current can have only one value B to prevent the current becoming too large C to…149 / 176
Question 392: The information describes the currents in three different circuits. Circuit P has a steady current of 0.52 A in one direction. Circuit Q ha…Question 393: Which piece of equipment is designed to produce a type of electromagnetic wave? A electric fire B electric generator C electric motor D ele…Question 394: An electric hairdryer is rated 230 V, 2 A. Which circuit could be used to check that these ratings are correct? A B power power supply supp…150 / 176
Question 395: The diagram shows a circuit used to control the potential difference (p.d.) across a lamp. The variable resistor is adjusted until the p.d.…Question 396: A circuit containing a cell, a resistor and a lamp is set up as shown. A student connects a voltmeter to the circuit in one of the position…151 / 176
Question 397: The diagram shows a potential divider circuit. V The temperature of the thermistor increases. What happens to the resistance of the thermis…Question 398: A student sets up four circuits using identical batteries and three identical lamps. In which circuit will all the lamps be the brightest? …Question 399: Which diagram shows the circuit symbol for a fuse? A B C D152 / 176
Question 400: If the insulation within a mains cable becomes damaged, two of the wires in it may touch and cause a short circuit. Which row is correct? s…Question 401: Transformers are used in the transmission of electrical power to houses. Which type of transformer is used at the power station prior to co…Question 402: A student is investigating a resistance wire. She measures the current in a 50 cm length of resistance wire. A resistance wire The student …153 / 176
Question 403: The diagram shows the circuit that a student uses to determine the resistance of resistor R. meter 1 R meter 2 Which row describes meter 1 …Question 404: The diagram shows a potential divider circuit. V The temperature of the thermistor increases. What happens to the resistance of the thermis…154 / 176
Question 405: The diagram shows a series circuit containing a fixed voltage power supply, a thermistor, a light-dependent resistor (LDR) and a lamp. Whic…Question 406: The diagram shows a circuit containing a cell, a lamp and two ammeters. ammeter 1 A A ammeter 2 The current reading on ammeter 2 is 0.20 A.…Question 407: The circuit connecting a room heater to the mains electricity supply has a fuse in it. The fuse melts and switches off the circuit. Why doe…155 / 176
Question 408: A laboratory has a standard wire of known resistance. It also has other wires, made from the same material as the standard wire, but of dif…Question 409: The diagram shows a circuit. Which energy transfers occur? A battery → lamp → surrounding air B battery → surrounding air → battery C lamp …Question 410: X, Y and Z are lamps. + 8 + = 2 Y Z X In which lamps is there a current? key ¥ = current in lamp X = no current in lamp \ \ *& x |X ~…156 / 176
Question 411: The diagram shows a circuit. Which change causes the bulb in the circuit to become brighter? A a decrease in light intensity B a decrease i…Question 412: The current in a kettle is 10 A and the kettle is protected by a 13 A fuse. The owner of the kettle replaces the 13 A fuse with a 3 A fuse.…Question 413: Over time, the strength of the magnets in an electric motor decreases. Which row describes two ways to keep the motor running at its origin…Question 414: Which particles move to cause a current in a copper wire? A copper atoms B electrons from the copper atoms C protons from the copper nuclei…157 / 176
Question 415: Four students draw a circuit diagram of the apparatus used to measure the resistance of resistor R. Which circuit is correct? A B V A R R A…Question 416: The battery on a bicycle is connected in parallel to its lamp and bell. The circuit includes two switches, S1 and S2. S1 bell S2 The cyclis…158 / 176
Question 417: Which symbol represents an electric heater? A B C DQuestion 418: A student connects the circuit shown. 1 bell 2 3 4 Which switches must be closed for the bell to ring without lighting the lamp? A 1 and 2 …Question 419: A double-insulated electrical appliance must be connected safely to the electricity supply. Which statement is correct? A It must be connec…Question 420: What is an advantage of transmitting electricity at a high voltage? A It is faster. B It is safer. C Less energy is wasted. D Less equipmen…Question 421: Which circuit can be used to measure the resistance of a resistor? A B C D V V V V A A A A159 / 176
Question 422: The circuit diagram shows a battery connected to two resistors. Four labelled ammeters are connected into the circuit. Which ammeter shows…Question 423: Two lamps are connected in parallel. S1 S2 S3 Which switches must be closed so that both lamps light? A S1 and S2 only B S1 and S3 only C S…160 / 176
Question 424: The diagram represents the transmission of electricity from a power station to homes that are many kilometres away. Two transformers are la…Question 425: A power supply of electromotive force (e.m.f.) 12 V is connected across a 3  resistor. Which ammeter is most suitable to measure the curre…Question 426: The cost of electrical energy is $0.25 for each unit of 1 kW h. A 2200 W heater is switched on for 48 minutes. What is the cost of this use…Question 427: The diagram shows six different electrical circuit components. G A V M Which circuit symbol is not present in the diagram? A resistor B vol…161 / 176
Question 428: The circuit shown contains three switches and four lamps P, Q, R and S. switch 1 lamp P lamp Q switch 2 lamp R switch 3 lamp S Which switch…Question 429: An electric heater has a metal frame. The heating element is connected to the live and neutral wires of an a.c. supply. The metal frame is …Question 430: Four appliances all use an electric current to operate. Which appliance uses the magnetic effect of the current? A a heater B a light bulb …162 / 176
Question 431: How is electricity transmitted over large distances and why is it transmitted in this way? how why A at high voltage for safety B at high v…Question 432: Which statement about a voltmeter is correct? A It has a scale which is marked in amperes (A). B It must be connected in series in a circui…Question 433: Two 2.0  resistors are connected in parallel. What is the combined resistance of the resistors? A less than 2.0  B exactly 2.0  C more t…Question 434: An electric heater is plugged into the mains supply using a fused plug. The current in the heater is 10 A. The cable attached to the heater…163 / 176
Question 435: A battery is connected to an ammeter and a resistor. A The ammeter reading is 0.20 A. An electrical insulator is connected in parallel with…Question 436: Which equation is correct for resistance R, potential difference (p.d.) V and current I ? V I A R = I B R = V + I C R = V D R = V  IQuestion 437: In which heating system circuit would thermistors not be useful? A to keep different rooms at different temperatures B to turn an alarm on …Question 438: Which statement is correct? A A fuse is included in a circuit to prevent the current becoming too high. B A fuse should be connected to the…164 / 176
Question 439: Which graph of current I against time t represents an alternating current (a.c.)? A B I I 0 0 0 t 0 t C D I I 0 0 0 t 0 tQuestion 440: A transformer has Np turns on its primary coil and Ns turns on its secondary coil. The voltage across the primary coil is Vp and the voltag…Question 441: A student uses an ammeter to measure the current in a resistor. He considers three different circuits, as shown. 1 2 3 A A A In which of th…165 / 176
Question 442: Resistors of resistance 2.0Q and 3.0Q are connected in two different circuits. 2.00 3.0Q What is the total resistance in each circuit? s…Question 443: A generator uses the principle of electromagnetic induction. axis of rotation coil of copper wire magnet N S V Which change would increase …Question 444: What is a transformer used for? A changing a direct current into an alternating current B changing the magnitude of an alternating voltage …166 / 176
Question 445: The diagram shows a circuit containing two identical lamps and three ammeters. ammeter 1 A A ammeter 3 A ammeter 2 The current in ammeter 1…Question 446: Which material is a good electrical conductor? A glass B copper C rubber D woodQuestion 447: What is an electric current and how is an ammeter positioned in a circuit to measure the current in a resistor? what is an positioning elec…167 / 176
Question 448: The circuit in the diagram contains four switches, S1, S2, S3 and S4. S1 S2 S4 S3 Which three switches must be closed for the heater to wor…Question 449: A student makes a small d.c. motor. The teacher supplies the following equipment. ● battery ● ammeter ● voltmeter ● coil of wire ● magnets …168 / 176
Question 450: Which graph of voltage against time shows an a.c. voltage? A B voltage voltage 0 0 0 time 0 time C D voltage voltage 0 0 0 time 0 timeQuestion 451: A student designs a circuit to turn on a fan when the temperature increases. Which component does the student need to use in her circuit? A…Question 452: A class is designing a d.c. motor. To achieve a greater turning effect, three suggestions are made. 1 Have a larger current in the coil of …Question 453: What is a thermistor? A a container to keep a hot liquid warm B a circuit to control room temperature C a temperature-dependent resistor D …169 / 176
Question 454: The diagram shows a circuit containing two identical resistors connected to a battery. The current is measured at X and at Y. X Y Which row…Question 455: The diagram shows the information label on an electric kettle. Voltage: 110 V a.c. Power: 1500 W Frequency: 50 Hz What is the value of the …170 / 176
Question 456: Which circuit enables the resistance of the thermistor to be determined? A B V V A A C D A A V VQuestion 457: A student makes a battery by connecting five cells, as shown. 2.5 V 2.0 V 1.5 V 2.5 V 2.0 V What is the electromotive force (e.m.f.) of the…Question 458: The diagram shows a simple circuit. A wire V The ammeter reading is 2.0 A and the voltmeter reading is 6.0 V. What is the resistance of the…171 / 176
Question 459: The diagram shows a torch containing two cells, a switch and a lamp. cells plastic case brass switch connecting strip lamp Which circuit di…Question 460: Which circuit contains a thermistor and a heater? A B C DQuestion 461: Four 2.0 V cells are connected together in series to make a battery, as shown. What is the combined electromotive force (e.m.f.) of the bat…172 / 176
Question 462: A teacher makes a circuit using three 1.5 V cells and two 20  resistors connected in series. Which row gives the combined electromotive fo…Question 463: A 10 V d.c. power supply is connected across a resistor. The current in the resistor is 0.050 A. What is the resistance of the resistor? A …Question 464: A resistor and a thermistor are connected in a series circuit, as shown. A V What happens to the readings on the ammeter and the voltmeter …173 / 176
Question 465: In which circuit does the ammeter read 2.0 A?Question 466: A 10 V d.c. power supply is connected across a resistor. The current in the resistor is 0.050 A. What is the resistance of the resistor? A …Question 467: A resistor and a thermistor are connected in a series circuit, as shown. A V What happens to the readings on the ammeter and the voltmeter …174 / 176
Question 468: In which circuit does the ammeter read 2.0 A? 6.02 6.02 3.00 3.00Question 469: A student constructs four circuits, each containing a fuse. The fuse blows in one circuit and both lamps in the circuit go out. In which ci…Question 470: There is a current of 2.0 A in a resistor of resistance 8.0 . What is the potential difference (p.d.) across the resistor? A 0.25 V B 4.0 …175 / 176
Question 471: The circuit symbol for an ammeter is a circle with a letter A in it. The symbol for a fuse is a rectangle with a central line. Which pair o…176 / 176

Mark scheme471 answers

Answers below. Sit the paper first if you are practising.

Pastlit

Physics 0625 · Electric circuits — Paper 1

IGCSE · topical answer key — answer key (teacher use)

Question

Answer

Marks

1D1
2C1
3D1
4B1
5B1
6C1
7A1
8A1
9C1
10A1
11A1
12C1
13C1
14B1
15A1
16D1
17B1
18B1
19C1
20C1
21B1
22B1
23A1
24B1
25A1
26B1
27C1
28C1
29C1
30D1
31C1
32A1
33B1
34C1
35D1
36A1
37D1
38A1
39D1
40C1
41A1
42D1
43D1
44C1
45B1
46D1
47C1
48B1
49C1
1 / 10

Pastlit

Physics 0625 · Electric circuits — Paper 1

IGCSE · topical answer key — answer key (teacher use)

Question

Answer

Marks

50B1
51D1
52B1
53C1
54C1
55A1
56C1
57C1
58A1
59C1
60C1
61C1
62C1
63A1
64C1
65C1
66C1
67C1
68A1
69B1
70D1
71D1
72A1
73B1
74B1
75D1
76A1
77D1
78B1
79D1
80A1
81D1
82B1
83B1
84B1
85B1
86B1
87B1
88B1
89B1
90B1
91D1
92D1
93A1
94B1
95D1
96D1
97A1
98C1
2 / 10

Pastlit

Physics 0625 · Electric circuits — Paper 1

IGCSE · topical answer key — answer key (teacher use)

Question

Answer

Marks

99A1
100D1
101C1
102B1
103A1
104B1
105D1
106B1
107A1
108D1
109D1
110C1
111C1
112A1
113C1
114D1
115C1
116A1
117C1
118D1
119B1
120A1
121A1
122C1
123A1
124C1
125B1
126B1
127B1
128B1
129C1
130D1
131B1
132D1
133C1
134B1
135B1
136C1
137A1
138B1
139A1
140D1
141A1
142C1
143B1
144D1
145A1
146C1
147A1
3 / 10

Pastlit

Physics 0625 · Electric circuits — Paper 1

IGCSE · topical answer key — answer key (teacher use)

Question

Answer

Marks

148A1
149D1
150A1
151D1
152B1
153C1
154A1
155A1
156B1
157A1
158B1
159A1
160C1
161A1
162D1
163B1
164A1
165C1
166A1
167C1
168B1
169C1
170C1
171A1
172C1
173C1
174D1
175B1
176B1
177B1
178A1
179B1
180B1
181B1
182C1
183A1
184C1
185B1
186A1
187B1
188D1
189C1
190B1
191C1
192A1
193B1
194D1
195A1
196C1
4 / 10

Pastlit

Physics 0625 · Electric circuits — Paper 1

IGCSE · topical answer key — answer key (teacher use)

Question

Answer

Marks

197D1
198A1
199B1
200A1
201A1
202D1
203A1
204D1
205C1
206D1
207D1
208A1
209B1
210A1
211A1
212B1
213A1
214B1
215C1
216D1
217B1
218A1
219B1
220B1
221B1
222C1
223B1
224A1
225B1
226A1
227B1
228D1
229B1
230C1
231C1
232C1
233C1
234B1
235B1
236D1
237B1
238A1
239B1
240A1
241D1
242C1
243A1
244B1
245B1
5 / 10

Pastlit

Physics 0625 · Electric circuits — Paper 1

IGCSE · topical answer key — answer key (teacher use)

Question

Answer

Marks

246C1
247C1
248B1
249B1
250B1
251C1
252A1
253C1
254B1
255A1
256D1
257D1
258B1
259C1
260D1
261D1
262B1
263C1
264B1
265B1
266D1
267B1
268C1
269B1
270D1
271D1
272C1
273C1
274B1
275B1
276D1
277C1
278D1
279B1
280D1
281B1
282A1
283A1
284C1
285B1
286B1
287C1
288B1
289B1
290B1
291A1
292B1
293B1
294A1
6 / 10

Pastlit

Physics 0625 · Electric circuits — Paper 1

IGCSE · topical answer key — answer key (teacher use)

Question

Answer

Marks

295C1
296C1
297B1
298C1
299B1
300D1
301D1
302A1
303B1
304D1
305D1
306B1
307A1
308B1
309D1
310B1
311B1
312B1
313C1
314B1
315A1
316D1
317B1
318C1
319A1
320A1
321D1
322C1
323B1
324D1
325D1
326A1
327D1
328C1
329A1
330C1
331C1
332A1
333C1
334A1
335D1
336A1
337C1
338C1
339A1
340B1
341A1
342B1
343C1
7 / 10

Pastlit

Physics 0625 · Electric circuits — Paper 1

IGCSE · topical answer key — answer key (teacher use)

Question

Answer

Marks

344C1
345C1
346C1
347A1
348B1
349A1
350D1
351C1
352D1
353A1
354C1
355A1
356C1
357D1
358A1
359C1
360D1
361A1
362B1
363C1
364D1
365C1
366B1
367A1
368A1
369B1
370A1
371A1
372C1
373B1
374A1
375C1
376C1
377B1
378A1
379B1
380D1
381D1
382D1
383A1
384A1
385C1
386A1
387A1
388C1
389A1
390B1
391B1
392B1
8 / 10

Pastlit

Physics 0625 · Electric circuits — Paper 1

IGCSE · topical answer key — answer key (teacher use)

Question

Answer

Marks

393A1
394D1
395D1
396C1
397A1
398D1
399D1
400A1
401C1
402B1
403C1
404A1
405A1
406A1
407D1
408C1
409A1
410C1
411D1
412B1
413D1
414B1
415D1
416A1
417D1
418B1
419B1
420C1
421B1
422D1
423D1
424C1
425C1
426A1
427D1
428A1
429C1
430C1
431B1
432C1
433A1
434D1
435C1
436A1
437D1
438A1
439D1
440B1
441B1
9 / 10

Pastlit

Physics 0625 · Electric circuits — Paper 1

IGCSE · topical answer key — answer key (teacher use)

Question

Answer

Marks

442C1
443A1
444B1
445B1
446B1
447B1
448B1
449C1
450D1
451D1
452A1
453C1
454D1
455D1
456C1
457C1
458B1
459A1
460D1
461D1
462D1
463D1
464D1
465B1
466D1
467D1
468B1
469D1
470D1
471B1
10 / 10
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Another paper, or another topic

Paper
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All of Electricity and magnetism →

Questions as text

Q1 · In which circuit does the voltmeter read the potential difference across the lamp? 0625/11 May/June 2005

29 In which circuit does the voltmeter read the potential difference across the lamp? A B V V C D V V

1 marks

Answer: D

This question in 0625/11 May/June 2005

Q2 · In the circuit below, X and Y are identical 6 V lamps 0625/11 May/June 2005

30 In the circuit below, X and Y are identical 6 V lamps. 6 V switch X Y What happens when the switch is closed? A X lights more brightly than Y. B Y lights more brightly than X. C X and Y light with equal brightness. D Neither X nor Y light.

1 marks

Answer: C

This question in 0625/11 May/June 2005

Q3 · The diagram shows a circuit with three ammeters, X, Y and Z 0625/11 May/June 2005

31 The diagram shows a circuit with three ammeters, X, Y and Z. A X Y A Z A Which set of readings is possible? X Y Z A 2 A 3 A 5 A B 3 A 2 A 5 A C 3 A 3 A 3 A D 5 A 2 A 3 A

1 marks

Answer: D

This question in 0625/11 May/June 2005

Q4 · A lamp is to be connected in a circuit so that the p.d 0625/11 May/June 2005

32 A lamp is to be connected in a circuit so that the p.d. across it can be varied from 0 to 6 V. Which circuit would be most suitable? A B 6 V 6 V C D 6 V 6 V

1 marks

Answer: B

This question in 0625/11 May/June 2005

Q5 · A student makes the circuit shown 0625/11 May/June 2005

33 A student makes the circuit shown. 5 A fuse The fuse has blown and stopped the current. What could have caused this? A The current rating of the fuse was too high. B The current was too large. C The lamp was loose. D The voltage was too small.

1 marks

Answer: B

This question in 0625/11 May/June 2005

Q6 · Which circuit should be used to find the resistance of a lamp? 0625/11 Oct/Nov 2005

28 Which circuit should be used to find the resistance of a lamp? A B A V A V C D V V A A

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2005

Q7 · Which component can store energy for use in time delay circuits? 0625/11 Oct/Nov 2005

30 Which component can store energy for use in time delay circuits? A capacitor B potentiometer C resistor D thermistor

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2005

Q8 · When the circuit shown is connected with switch S open, the 6 V lamp glows 0625/11 Oct/Nov 2005

31 When the circuit shown is connected with switch S open, the 6 V lamp glows. 6 V R 6 V lamp S What happens to the brightness of the lamp when switch S is closed? A It becomes brighter. B It remains the same. C It becomes dimmer. D It goes off.

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2005

Q9 · Why are the electric lamps in a house lighting circuit normally connected in parallel? 0625/11 Oct/Nov 2005

32 Why are the electric lamps in a house lighting circuit normally connected in parallel? A The current in every circuit must be the same. B The lamps are always switched on and off at the same time. C The voltage across each lamp must be the mains voltage. D When one of the lamps blows, all the others go out.

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2005

Q10 · In the circuit shown, one of the fuses blows and all the lamps go out 0625/11 Oct/Nov 2005

33 In the circuit shown, one of the fuses blows and all the lamps go out. Which fuse blows? A B C D

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2005

Q11 · Which symbol represents an electrical component used to store energy? 0625/11 May/June 2006

30 Which symbol represents an electrical component used to store energy? A B C D

1 marks

Answer: A

This question in 0625/11 May/June 2006

Q12 · Four lamps and four switches are connected to a power supply as shown in the circuit… 0625/11 May/June 2006

31 Four lamps and four switches are connected to a power supply as shown in the circuit diagram. When all the switches are closed, all the lamps are lit. When one of the switches is then opened, only one lamp goes out. Which switch is opened? A B C D

1 marks

Answer: C

This question in 0625/11 May/June 2006

Q13 · Four resistors and an ammeter are connected to a battery as shown 0625/11 May/June 2006

32 Four resistors and an ammeter are connected to a battery as shown. The ammeter reads 2 A. Which of the four labelled points in the circuit is the only one where the current is less than 2 A? A A C D B

1 marks

Answer: C

This question in 0625/11 May/June 2006

Q14 · Which circuit is a variable potential divider (potentiometer)? 0625/11 May/June 2007

30 Which circuit is a variable potential divider (potentiometer)? A B output output C D output output

1 marks

Answer: B

This question in 0625/11 May/June 2007

Q15 · The circuit contains a relay 0625/11 May/June 2007

31 The circuit contains a relay. relay lamp 2 switch S lamp 1 When switch S is closed, what is the state of the lamps? lamp 1 lamp 2 A on on B on off C off on D off off

1 marks

Answer: A

This question in 0625/11 May/June 2007

Q16 · Which diagram shows a circuit that will allow the lamps to be switched on and off… 0625/11 May/June 2007

32 Which diagram shows a circuit that will allow the lamps to be switched on and off independently? A B C D

1 marks

Answer: D

This question in 0625/11 May/June 2007

Q17 · What is the symbol for a fuse? 0625/11 May/June 2007

33 What is the symbol for a fuse? A B C D

1 marks

Answer: B

This question in 0625/11 May/June 2007

Q18 · The circuit shows a current I in a resistor of resistance R 0625/11 Oct/Nov 2007

28 The circuit shows a current I in a resistor of resistance R. 3.0 V I R Which line gives possible values of I and of R? I / A R / Ω A 1.5 1.5 B 1.5 2.0 C 6.0 2.0 D 4.0 12.0

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2007

Q19 · The circuit shown in the diagram contains an unknown component X, hidden in a box 0625/11 Oct/Nov 2007

29 The circuit shown in the diagram contains an unknown component X, hidden in a box. The voltage-current graph for X is as shown. variable voltage supply + – voltage A X 0 V 0 current What is the component X? A a capacitor B a closed switch C a metallic resistor D an open switch

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2007

Q20 · Four lamps are connected in a circuit as shown in the diagram 0625/11 Oct/Nov 2007

30 Four lamps are connected in a circuit as shown in the diagram. Each lamp is designed to operate at 12 V. 12 V The circuit is now switched on. Which statement is correct? A Each lamp can be switched off independently. B If one lamp breaks all the others will stay alight. C The current is the same in all the lamps. D The lamps will all light at normal brightness.

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2007

Q21 · The diagram shows a battery connected to three identical resistors 0625/11 Oct/Nov 2007

31 The diagram shows a battery connected to three identical resistors. Four ammeters A, B, C and D are connected in the circuit. Which ammeter shows the smallest reading? A A A D A B A C

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2007

Q22 · In the circuit shown, the switch is closed for a long time, then opened 0625/11 Oct/Nov 2007

32 In the circuit shown, the switch is closed for a long time, then opened. voltmeter 1 V V V voltmeter 2 voltmeter 3 Immediately after the switch is opened, which voltmeters will read zero? A voltmeter 1 only B voltmeter 2 only C voltmeter 3 only D voltmeter 1, voltmeter 2 and voltmeter 3

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2007

Q23 · Which circuit symbol represents a component used to store energy? 0625/11 May/June 2008

30 Which circuit symbol represents a component used to store energy? A B C D

1 marks

Answer: A

This question in 0625/11 May/June 2008

Q24 · In the circuit shown, the switches S1 and S2 may be open (off) or closed (on) 0625/11 May/June 2008

31 In the circuit shown, the switches S1 and S2 may be open (off) or closed (on). V + switches shown 12 V open (off) – S2 S1 Which line in the table shows the voltmeter reading for the switch positions given? S1 S2 voltmeter reading / V A open open 12 B closed closed 12 C open closed 0 D closed open 12

1 marks

Answer: B

This question in 0625/11 May/June 2008

Q25 · The device X in this circuit is designed to cut off the electricity supply automatically… 0625/11 May/June 2008

32 The device X in this circuit is designed to cut off the electricity supply automatically if too much current flows. X What is device X? A a fuse B a switch C a resistor D an ammeter

1 marks

Answer: A

This question in 0625/11 May/June 2008

Q26 · The diagrams show two ways in which three lamps may be connected 0625/11 May/June 2008

33 The diagrams show two ways in which three lamps may be connected. X Y X Y Z Z circuit 1 circuit 2 Which statement is correct? A If lamp Y breaks in circuit 1, both the other lamps will go out. B If lamp Y breaks in circuit 2, both the other lamps will go out. C If lamp Y breaks in circuit 1, lamp Z will go out, but lamp X will remain on. D If lamp Y breaks in circuit 2, lamp Z will go out, but lamp X will remain on.

1 marks

Answer: B

This question in 0625/11 May/June 2008

Q27 · A potential divider circuit containing two 100 Ω resistors 0625/11 May/June 2008

37 Diagram 1 shows a potential divider circuit containing two 100 Ω resistors. One of the resistors is changed to 90 Ω, as shown in diagram 2. diagram 1 diagram 2 100 Ω 90 Ω 100 Ω V 100 Ω V How does the reading on the voltmeter change when this is done? A It becomes zero. B It decreases a little. C It increases a little. D It stays the same.

1 marks

Answer: C

This question in 0625/11 May/June 2008

Q28 · In the circuit below, X and Y are identical 6 V lamps 0625/11 Oct/Nov 2008

30 In the circuit below, X and Y are identical 6 V lamps. 6 V switch X Y What happens when the switch is closed (the current is switched on)? A X lights more brightly than Y. B Y lights more brightly than X. C X and Y both light with full brightness. D X and Y both light with half brightness.

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2008

Q29 · The diagram shows four different circuits 0625/11 Oct/Nov 2008

31 The diagram shows four different circuits. P Q 3 Ω 5 Ω R S 3 Ω 3 Ω 5 Ω 5 Ω What is the order of increasing resistance of these circuits? lowest highest resistance resistance A P Q R S B R S P Q C S P Q R D P R Q S

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2008

Q30 · A student makes four circuits 0625/11 Oct/Nov 2008

32 A student makes four circuits. In which circuit are both lamps protected by the fuse? A B C D

1 marks

Answer: D

This question in 0625/11 Oct/Nov 2008

Q31 · When the thermistor in the circuit below is heated, the lamp becomes brighter 0625/11 Oct/Nov 2008

37 When the thermistor in the circuit below is heated, the lamp becomes brighter. Why does this happen? A The resistance of the lamp decreases. B The resistance of the lamp increases. C The resistance of the thermistor decreases. D The resistance of the thermistor increases.

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2008

Q32 · Using the circuit shown, the current I is found for various voltages V 0625/11 May/June 2009

28 Using the circuit shown, the current I is found for various voltages V. The temperature of the resistor does not change. variable direct voltage V A I Which graph shows the results obtained? A B C D I I I I 0 0 0 0 0 V 0 V 0 V 0 V

1 marks

Answer: A

This question in 0625/11 May/June 2009

Q33 · In the circuit shown, ammeter X reads 0.5 A 0625/11 May/June 2009

29 In the circuit shown, ammeter X reads 0.5 A. 4.0 V X A A Y 3.0 Ω 5.0 Ω What does ammeter Y read? A 0 B 0.5 A C 3.5 A D 4.0 A

1 marks

Answer: B

This question in 0625/11 May/June 2009

Q34 · In the circuits shown, all the resistors are identical 0625/11 May/June 2009

30 In the circuits shown, all the resistors are identical. Which circuit has the least resistance? A B C D

1 marks

Answer: C

This question in 0625/11 May/June 2009

Q35 · In the circuit below, one of the lamps breaks, causing all the other lamps to go out 0625/11 May/June 2009

31 In the circuit below, one of the lamps breaks, causing all the other lamps to go out. Which lamp breaks? A C D B

1 marks

Answer: D

This question in 0625/11 May/June 2009

Q36 · Either a fuse or a circuit-breaker can be used to protect electrical cables from large… 0625/11 May/June 2009

32 Either a fuse or a circuit-breaker can be used to protect electrical cables from large currents that could cause overheating. X cable live electrical Y Y Y appliance supply neutral cable If a fuse is used, in which position in the circuit should it be connected, and if a circuit-breaker is used, in which position should it be connected? position position of of fuse circuit-breaker A X X B X Y C Y X D Y Y

1 marks

Answer: A

This question in 0625/11 May/June 2009

Q37 · The diagram shows a battery connected to two identical resistors 0625/11 Oct/Nov 2009

29 The diagram shows a battery connected to two identical resistors. Three ammeters M1, M2 and M3 are connected in the circuit. M1 A A M3 A M2 Meter M1 reads 1.0 A. What are the readings on M2 and on M3? reading on M2 / A reading on M3 / A A 0.5 0.0 B 0.5 0.5 C 0.5 1.0 D 1.0 1.0

1 marks

Answer: D

This question in 0625/11 Oct/Nov 2009

Q38 · The diagram shows a torch containing two cells, a switch and a lamp 0625/11 Oct/Nov 2009

30 The diagram shows a torch containing two cells, a switch and a lamp. plastic case brass connecting switch strip lamp What is the circuit diagram for the torch? A B C D

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2009

Q39 · An electrical component X is placed in water, as shown 0625/11 Oct/Nov 2009

31 An electrical component X is placed in water, as shown. A thermometer X water When the temperature of the water is increased, the reading on the ammeter increases. What is component X? A a capacitor B a light-dependent resistor C a relay D a thermistor

1 marks

Answer: D

This question in 0625/11 Oct/Nov 2009

Q40 · A certain electrical appliance is powered from a mains supply 0625/11 Oct/Nov 2009

32 A certain electrical appliance is powered from a mains supply. The appliance normally uses a current of 3 A, but the current briefly rises to 4 A at the instant the appliance is switched on. The cable to the appliance is designed for currents up to 6 A. The fuses available to protect the cable are rated at 1 A, 3 A, 5 A and 13 A. Which fuse should be used? A 1 A B 3 A C 5 A D 13 A

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2009

Q41 · The diagram shows a torch containing two cells, a switch and a lamp 0625/12 Oct/Nov 2009

29 The diagram shows a torch containing two cells, a switch and a lamp. plastic case brass connecting switch strip lamp What is the circuit diagram for the torch? A B C D

1 marks

Answer: A

This question in 0625/12 Oct/Nov 2009

Q42 · The diagram shows a battery connected to two identical resistors 0625/12 Oct/Nov 2009

30 The diagram shows a battery connected to two identical resistors. Three ammeters M1, M2 and M3 are connected in the circuit. M1 A A M3 A M2 Meter M1 reads 1.0 A. What are the readings on M2 and on M3? reading on M2 / A reading on M3 / A A 0.5 0.0 B 0.5 0.5 C 0.5 1.0 D 1.0 1.0

1 marks

Answer: D

This question in 0625/12 Oct/Nov 2009

Q43 · An electrical component X is placed in water, as shown 0625/12 Oct/Nov 2009

32 An electrical component X is placed in water, as shown. A thermometer X water When the temperature of the water is increased, the reading on the ammeter increases. What is component X? A a capacitor B a light-dependent resistor C a relay D a thermistor

1 marks

Answer: D

This question in 0625/12 Oct/Nov 2009

Q44 · Which device is designed to allow a small direct current (d.c.) to control a large direct… 0625/12 Oct/Nov 2009

33 Which device is designed to allow a small direct current (d.c.) to control a large direct current (d.c.)? A a generator B a motor C a relay D a transformer

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2009

Q45 · A circuit is set up to measure the resistance of a resistor R 0625/11 May/June 2010

29 A circuit is set up to measure the resistance of a resistor R. The meter readings are 2.0 A and 3.0 V. A V R What is the resistance of the resistor R? A 0.67 Ω B 1.5 Ω C 5.0 Ω D 6.0 Ω

1 marks

Answer: B

This question in 0625/11 May/June 2010

Q46 · The circuit shown is a potential divider 0625/11 May/June 2010

30 The circuit shown is a potential divider. X output What is component X? A a light-dependent resistor B a relay C a thermistor D a variable resistor

1 marks

Answer: D

This question in 0625/11 May/June 2010

Q47 · A lamp is connected in four circuits in turn, each using identical batteries 0625/11 May/June 2010

31 A lamp is connected in four circuits in turn, each using identical batteries. The resistors are all identical. In which circuit will the lamp be brightest? A B C D

1 marks

Answer: C

This question in 0625/11 May/June 2010

Q48 · Which diagram shows the correct positions for both the switch and the fuse? 0625/11 May/June 2010

32 Which diagram shows the correct positions for both the switch and the fuse? live wire switch A lamp neutral wire fuse fuse live wire switch B lamp neutral wire fuse live wire C lamp neutral wire switch live wire D lamp neutral wire fuse switch

1 marks

Answer: B

This question in 0625/11 May/June 2010

Q49 · A lamp is connected in four circuits in turn, each using identical batteries 0625/12 May/June 2010

29 A lamp is connected in four circuits in turn, each using identical batteries. The resistors are all identical. In which circuit will the lamp be brightest? A B C D

1 marks

Answer: C

This question in 0625/12 May/June 2010

Q50 · A circuit is set up to measure the resistance of a resistor R 0625/12 May/June 2010

30 A circuit is set up to measure the resistance of a resistor R. The meter readings are 2.0 A and 3.0 V. A V R What is the resistance of the resistor R? A 0.67 Ω B 1.5 Ω C 5.0 Ω D 6.0 Ω

1 marks

Answer: B

This question in 0625/12 May/June 2010

Q51 · The circuit shown is a potential divider 0625/12 May/June 2010

32 The circuit shown is a potential divider. X output What is component X? A a light-dependent resistor B a relay C a thermistor D a variable resistor

1 marks

Answer: D

This question in 0625/12 May/June 2010

Q52 · Which diagram shows the correct positions for both the switch and the fuse? 0625/12 May/June 2010

35 Which diagram shows the correct positions for both the switch and the fuse? live wire switch A lamp neutral wire fuse fuse live wire switch B lamp neutral wire fuse live wire C lamp neutral wire switch live wire D lamp neutral wire fuse switch

1 marks

Answer: B

This question in 0625/12 May/June 2010

Q53 · A potential difference (p.d.) across a resistor causes a current in it 0625/11 Oct/Nov 2010

28 A potential difference (p.d.) across a resistor causes a current in it. resistor current p.d. The p.d. and the resistance of the resistor can both be changed. Which row shows two changes that will both increase the current in the resistor? change change A decrease p.d. decrease resistance B decrease p.d. increase resistance C increase p.d. decrease resistance D increase p.d. increase resistance

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2010

Q54 · The diagram shows a circuit containing two ammeters and three resistors 0625/11 Oct/Nov 2010

29 The diagram shows a circuit containing two ammeters and three resistors. ammeter ammeter A A X Y R1 R2 R3 Which of the ammeters will show the current in resistor R2? A ammeter X only B ammeter Y only C both ammeter X and ammeter Y D neither ammeter X nor ammeter Y

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2010

Q55 · Which component can store energy and can be used in time-delay circuits? 0625/11 Oct/Nov 2010

30 Which component can store energy and can be used in time-delay circuits? A a capacitor B a potentiometer C a resistor D a thermistor

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2010

Q56 · A circuit contains two resistors connected in parallel with a battery 0625/11 Oct/Nov 2010

31 A circuit contains two resistors connected in parallel with a battery. R P 2 Ω Q 4 Ω Which of the following statements about the currents at P, Q and R is true? A The current at P is the greatest. B The current at Q is the greatest. C The current at R is the greatest. D The current is the same at points P, Q and R.

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2010

Q57 · The potential divider shown is connected across a constant 12 V supply 0625/11 Oct/Nov 2010

32 The potential divider shown is connected across a constant 12 V supply. V1 20 Ω 12 V V2 R When R has a value of 20 Ω, the voltmeter readings are equal. How do these readings change when the value of R is reduced to 10 Ω? reading on V1 reading on V2 A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2010

Q58 · A fuse is a safety device for use in an electrical appliance 0625/11 Oct/Nov 2010

33 A fuse is a safety device for use in an electrical appliance. How does a fuse affect a circuit when the current in it becomes higher than the correct value for the appliance? A It completely stops the current. B It reduces the current to the correct value for the appliance. C It sends the current to the outer case of the appliance. D It sends the excess current to the earth wire.

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2010

Q59 · The diagram shows a circuit containing two ammeters and three resistors 0625/12 Oct/Nov 2010

26 The diagram shows a circuit containing two ammeters and three resistors. ammeter ammeter A A X Y R1 R2 R3 Which of the ammeters will show the current in resistor R2? A ammeter X only B ammeter Y only C both ammeter X and ammeter Y D neither ammeter X nor ammeter Y

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2010

Q60 · A potential difference (p.d.) across a resistor causes a current in it 0625/12 Oct/Nov 2010

27 A potential difference (p.d.) across a resistor causes a current in it. resistor current p.d. The p.d. and the resistance of the resistor can both be changed. Which row shows two changes that will both increase the current in the resistor? change change A decrease p.d. decrease resistance B decrease p.d. increase resistance C increase p.d. decrease resistance D increase p.d. increase resistance

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2010

Q61 · The potential divider shown is connected across a constant 12 V supply 0625/12 Oct/Nov 2010

29 The potential divider shown is connected across a constant 12 V supply. V1 20 Ω 12 V V2 R When R has a value of 20 Ω, the voltmeter readings are equal. How do these readings change when the value of R is reduced to 10 Ω? reading on V1 reading on V2 A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2010

Q62 · A circuit contains two resistors connected in parallel with a battery 0625/12 Oct/Nov 2010

30 A circuit contains two resistors connected in parallel with a battery. R P 2 Ω Q 4 Ω Which of the following statements about the currents at P, Q and R is true? A The current at P is the greatest. B The current at Q is the greatest. C The current at R is the greatest. D The current is the same at points P, Q and R.

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2010

Q63 · A fuse is a safety device for use in an electrical appliance 0625/12 Oct/Nov 2010

32 A fuse is a safety device for use in an electrical appliance. How does a fuse affect a circuit when the current in it becomes higher than the correct value for the appliance? A It completely stops the current. B It reduces the current to the correct value for the appliance. C It sends the current to the outer case of the appliance. D It sends the excess current to the earth wire.

1 marks

Answer: A

This question in 0625/12 Oct/Nov 2010

Q64 · The diagram shows a circuit containing two ammeters and three resistors 0625/13 Oct/Nov 2010

28 The diagram shows a circuit containing two ammeters and three resistors. ammeter ammeter A A X Y R1 R2 R3 Which of the ammeters will show the current in resistor R2? A ammeter X only B ammeter Y only C both ammeter X and ammeter Y D neither ammeter X nor ammeter Y

1 marks

Answer: C

This question in 0625/13 Oct/Nov 2010

Q65 · A circuit contains two resistors connected in parallel with a battery 0625/13 Oct/Nov 2010

29 A circuit contains two resistors connected in parallel with a battery. R P 2 Ω Q 4 Ω Which of the following statements about the currents at P, Q and R is true? A The current at P is the greatest. B The current at Q is the greatest. C The current at R is the greatest. D The current is the same at points P, Q and R.

1 marks

Answer: C

This question in 0625/13 Oct/Nov 2010

Q66 · A potential difference (p.d.) across a resistor causes a current in it 0625/13 Oct/Nov 2010

30 A potential difference (p.d.) across a resistor causes a current in it. resistor current p.d. The p.d. and the resistance of the resistor can both be changed. Which row shows two changes that will both increase the current in the resistor? change change A decrease p.d. decrease resistance B decrease p.d. increase resistance C increase p.d. decrease resistance D increase p.d. increase resistance

1 marks

Answer: C

This question in 0625/13 Oct/Nov 2010

Q67 · The potential divider shown is connected across a constant 12 V supply 0625/13 Oct/Nov 2010

31 The potential divider shown is connected across a constant 12 V supply. V1 20 Ω 12 V V2 R When R has a value of 20 Ω, the voltmeter readings are equal. How do these readings change when the value of R is reduced to 10 Ω? reading on V1 reading on V2 A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: C

This question in 0625/13 Oct/Nov 2010

Q68 · Which component can store energy and can be used in time-delay circuits? 0625/13 Oct/Nov 2010

32 Which component can store energy and can be used in time-delay circuits? A a capacitor B a potentiometer C a resistor D a thermistor

1 marks

Answer: A

This question in 0625/13 Oct/Nov 2010

Q69 · An ammeter and an 18 Ω resistor are connected in series with a battery 0625/11 May/June 2011

27 An ammeter and an 18 Ω resistor are connected in series with a battery. The reading on the ammeter is 0.50 A. The resistance of the battery and the ammeter can be ignored. A 18 Ω What is the electromotive force (e.m.f.) of the battery? A 9.0 N B 9.0 V C 36 N D 36 V

1 marks

Answer: B

This question in 0625/11 May/June 2011

Q70 · Which circuit includes a capacitor and what does the capacitor do in this circuit? 0625/11 May/June 2011

29 Which circuit includes a capacitor and what does the capacitor do in this circuit? what the circuit capacitor does A potential divider stores current B potential divider stores energy C time delay stores current D time delay stores energy

1 marks

Answer: D

This question in 0625/11 May/June 2011

Q71 · A student sets up the circuit shown 0625/11 May/June 2011

30 A student sets up the circuit shown. The switch is open (off). X Y Z Which lamps are on and which lamps are off? lamp X lamp Y lamp Z A off off off B on off off C on off on D on on on

1 marks

Answer: D

This question in 0625/11 May/June 2011

Q72 · The diagram shows a thermistor in a potential divider 0625/11 May/June 2011

31 The diagram shows a thermistor in a potential divider. A voltmeter is connected across the thermistor. V The graph shows how the resistance of the thermistor changes with temperature. resistance temperature As the thermistor becomes warmer, what happens to its resistance and what happens to the reading on the voltmeter? resistance voltmeter reading A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: A

This question in 0625/11 May/June 2011

Q73 · In this circuit, a component at X automatically protects the wiring from overheating if… 0625/11 May/June 2011

32 In this circuit, a component at X automatically protects the wiring from overheating if there is a fault. X electrical supply Which components are suitable to use at X? A a circuit-breaker, a fuse or a switch B only a circuit-breaker or a fuse C only a circuit-breaker or a switch D only a fuse

1 marks

Answer: B

This question in 0625/11 May/June 2011

Q74 · An ammeter and an 18 Ω resistor are connected in series with a battery 0625/12 May/June 2011

25 An ammeter and an 18 Ω resistor are connected in series with a battery. The reading on the ammeter is 0.50 A. The resistance of the battery and the ammeter can be ignored. A 18 Ω What is the electromotive force (e.m.f.) of the battery? A 9.0 N B 9.0 V C 36 N D 36 V

1 marks

Answer: B

This question in 0625/12 May/June 2011

Q75 · Which circuit includes a capacitor and what does the capacitor do in this circuit? 0625/12 May/June 2011

27 Which circuit includes a capacitor and what does the capacitor do in this circuit? what the circuit capacitor does A potential divider stores current B potential divider stores energy C time delay stores current D time delay stores energy

1 marks

Answer: D

This question in 0625/12 May/June 2011

Q76 · The diagram shows a thermistor in a potential divider 0625/12 May/June 2011

29 The diagram shows a thermistor in a potential divider. A voltmeter is connected across the thermistor. V The graph shows how the resistance of the thermistor changes with temperature. resistance temperature As the thermistor becomes warmer, what happens to its resistance and what happens to the reading on the voltmeter? resistance voltmeter reading A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: A

This question in 0625/12 May/June 2011

Q77 · A student sets up the circuit shown 0625/12 May/June 2011

31 A student sets up the circuit shown. The switch is open (off). X Y Z Which lamps are on and which lamps are off? lamp X lamp Y lamp Z A off off off B on off off C on off on D on on on

1 marks

Answer: D

This question in 0625/12 May/June 2011

Q78 · An ammeter and an 18 Ω resistor are connected in series with a battery 0625/13 May/June 2011

25 An ammeter and an 18 Ω resistor are connected in series with a battery. The reading on the ammeter is 0.50 A. The resistance of the battery and the ammeter can be ignored. A 18 Ω What is the electromotive force (e.m.f.) of the battery? A 9.0 N B 9.0 V C 36 N D 36 V

1 marks

Answer: B

This question in 0625/13 May/June 2011

Q79 · Which circuit includes a capacitor and what does the capacitor do in this circuit? 0625/13 May/June 2011

27 Which circuit includes a capacitor and what does the capacitor do in this circuit? what the circuit capacitor does A potential divider stores current B potential divider stores energy C time delay stores current D time delay stores energy

1 marks

Answer: D

This question in 0625/13 May/June 2011

Q80 · The diagram shows a thermistor in a potential divider 0625/13 May/June 2011

29 The diagram shows a thermistor in a potential divider. A voltmeter is connected across the thermistor. V The graph shows how the resistance of the thermistor changes with temperature. resistance temperature As the thermistor becomes warmer, what happens to its resistance and what happens to the reading on the voltmeter? resistance voltmeter reading A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: A

This question in 0625/13 May/June 2011

Q81 · A student sets up the circuit shown 0625/13 May/June 2011

31 A student sets up the circuit shown. The switch is open (off). X Y Z Which lamps are on and which lamps are off? lamp X lamp Y lamp Z A off off off B on off off C on off on D on on on

1 marks

Answer: D

This question in 0625/13 May/June 2011

Q82 · The diagram shows a circuit used to find the resistance of lamp L 0625/11 Oct/Nov 2012

30 The diagram shows a circuit used to find the resistance of lamp L. Blocks P, Q and R represent the different components used. 12 V P R L Q Which is a correct possible choice of components to use for P, Q and R? P Q R A ammeter variable resistor voltmeter B variable resistor voltmeter ammeter C voltmeter ammeter variable resistor D voltmeter variable resistor ammeter

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2012

Q83 · A student connects the circuit shown 0625/11 Oct/Nov 2012

31 A student connects the circuit shown. 1 2 3 4 Which switches must be closed for the bell to ring without lighting the lamp? A 1 and 2 only B 1 and 3 only C 1, 3 and 4 only D 2, 3 and 4 only

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2012

Q84 · Which row shows a use of a capacitor and a use of a relay? 0625/11 Oct/Nov 2012

32 Which row shows a use of a capacitor and a use of a relay? use of a capacitor use of a relay A switching circuit voltage transformation B time-delay circuit switching circuit C voltage transformation switching circuit D voltage transformation time-delay circuit

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2012

Q85 · The diagram shows two voltmeters, P and Q, connected to a potential divider 0625/11 Oct/Nov 2012

33 The diagram shows two voltmeters, P and Q, connected to a potential divider. V voltmeter P X V voltmeter Q The sliding connection at point X is moved towards the top of the diagram. What happens to the reading on P and to the reading on Q? reading on P reading on Q A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2012

Q86 · A student connects the circuit shown 0625/12 Oct/Nov 2012

28 A student connects the circuit shown. 1 2 3 4 Which switches must be closed for the bell to ring without lighting the lamp? A 1 and 2 only B 1 and 3 only C 1, 3 and 4 only D 2, 3 and 4 only

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2012

Q87 · The diagram shows two voltmeters, P and Q, connected to a potential divider 0625/12 Oct/Nov 2012

29 The diagram shows two voltmeters, P and Q, connected to a potential divider. V voltmeter P X V voltmeter Q The sliding connection at point X is moved towards the top of the diagram. What happens to the reading on P and to the reading on Q? reading on P reading on Q A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2012

Q88 · The diagram shows a circuit used to find the resistance of lamp L 0625/12 Oct/Nov 2012

30 The diagram shows a circuit used to find the resistance of lamp L. Blocks P, Q and R represent the different components used. 12 V P R L Q Which is a correct possible choice of components to use for P, Q and R? P Q R A ammeter variable resistor voltmeter B variable resistor voltmeter ammeter C voltmeter ammeter variable resistor D voltmeter variable resistor ammeter

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2012

Q89 · Which row shows a use of a capacitor and a use of a relay? 0625/12 Oct/Nov 2012

31 Which row shows a use of a capacitor and a use of a relay? use of a capacitor use of a relay A switching circuit voltage transformation B time-delay circuit switching circuit C voltage transformation switching circuit D voltage transformation time-delay circuit

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2012

Q90 · The circuit shows a 24 V battery connected to two resistors in series 0625/13 Oct/Nov 2012

30 The circuit shows a 24 V battery connected to two resistors in series. A R V The reading on the ammeter is 2.0 A and the reading on the voltmeter is 8.0 V. What is the resistance of resistor R? A 0.25 Ω B 4.0 Ω C 10 Ω D 16 Ω

1 marks

Answer: B

This question in 0625/13 Oct/Nov 2012

Q91 · A relay allows a small current in one circuit to control a different circuit 0625/13 Oct/Nov 2012

31 A relay allows a small current in one circuit to control a different circuit. Which type of force is produced by the small current to activate the relay? A electrical B frictional C gravitational D magnetic

1 marks

Answer: D

This question in 0625/13 Oct/Nov 2012

Q92 · The diagram shows a circuit containing two identical lamps 0625/13 Oct/Nov 2012

32 The diagram shows a circuit containing two identical lamps. P Q R Which switches must be closed to light both of the lamps? A P and Q only B P and R only C Q and R only D P, Q and R

1 marks

Answer: D

This question in 0625/13 Oct/Nov 2012

Q93 · The diagram shows a potential divider circuit 0625/13 Oct/Nov 2012

33 The diagram shows a potential divider circuit. V The temperature of the thermistor increases. What happens to the resistance of the thermistor, and what happens to the reading on the voltmeter? resistance of voltmeter thermistor reading A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: A

This question in 0625/13 Oct/Nov 2012

Q94 · Which circuit could be used to determine the resistance of the resistor R? 0625/11 May/June 2013

29 Which circuit could be used to determine the resistance of the resistor R? A B V A R R A V C D V A R R V A

1 marks

Answer: B

This question in 0625/11 May/June 2013

Q95 · The diagram shows an electrical circuit 0625/11 May/June 2013

31 The diagram shows an electrical circuit. L M N P O Between which two points must a voltmeter be connected to find the potential difference across the bell? A L and M B M and N C N and O D O and P

1 marks

Answer: D

This question in 0625/11 May/June 2013

Q96 · The reading on the ammeter in the circuit is 1.0 A 0625/11 May/June 2013

32 The reading on the ammeter in the circuit is 1.0 A. A second ammeter is connected in the circuit. It also reads 1.0 A. At which labelled point is it connected? 1.0 A A A D B C

1 marks

Answer: D

This question in 0625/11 May/June 2013

Q97 · The circuit shows a battery and four lamps 0625/11 May/June 2013

33 The circuit shows a battery and four lamps. All the lamps are lit. One lamp fails and all the lamps go out. Which lamp failed? A B D C

1 marks

Answer: A

This question in 0625/11 May/June 2013

Q98 · An electric current can produce a heating effect and a magnetic effect 0625/11 May/June 2013

35 An electric current can produce a heating effect and a magnetic effect. Which row shows the effect that a relay uses, together with one application of a relay? effect used by a relay one application of a relay A heating effect allowing a small current to switch on a large current B heating effect changing the voltage of an alternating current C magnetic effect allowing a small current to switch on a large current D magnetic effect changing the voltage of an alternating current

1 marks

Answer: C

This question in 0625/11 May/June 2013

Q99 · A student investigates a circuit that contains two parallel resistors 0625/12 May/June 2013

30 A student investigates a circuit that contains two parallel resistors. The circuit includes meters R, S and T which are all connected correctly. R S T resistors Which types of meter are R, S and T? meter R meter S meter T A ammeter ammeter ammeter B ammeter voltmeter voltmeter C voltmeter ammeter ammeter D voltmeter voltmeter voltmeter

1 marks

Answer: A

This question in 0625/12 May/June 2013

Q100 · A circuit contains the component shown by the following symbol 0625/12 May/June 2013

31 A circuit contains the component shown by the following symbol. Which change would the component detect? A change in A light level. B potential difference. C radioactivity. D temperature.

1 marks

Answer: D

This question in 0625/12 May/June 2013

Q101 · The diagram shows a circuit which includes a switch and a capacitor 0625/12 May/June 2013

32 The diagram shows a circuit which includes a switch and a capacitor. capacitor P switch Q What happens to the capacitor when the switch is at P and when it is at Q? switch at P switch at Q A charging charging B charging discharging C discharging charging D discharging discharging

1 marks

Answer: C

This question in 0625/12 May/June 2013

Q102 · The circuit diagram shows a cell connected to three identical lamps X, Y and Z 0625/12 May/June 2013

33 The circuit diagram shows a cell connected to three identical lamps X, Y and Z. All the lamps are lit. X Z Y Lamp Y is removed by unscrewing it from its holder. What happens to lamp Z? A It goes out completely. B It becomes dimmer but stays lit. C It stays the same brightness. D It becomes brighter.

1 marks

Answer: B

This question in 0625/12 May/June 2013

Q103 · Each branch of a domestic circuit often includes a circuit-breaker 0625/12 May/June 2013

34 Each branch of a domestic circuit often includes a circuit-breaker. This protects the wiring if too much current flows in the circuit. In which wire is the circuit-breaker placed and what does it do when it operates? circuit-breaker in when the circuit-breaker operates it A live wire disconnects the circuit B live wire reduces the current to a safe value (not zero) C neutral wire disconnects the circuit D neutral wire reduces the current to a safe value (not zero)

1 marks

Answer: A

This question in 0625/12 May/June 2013

Q104 · A student wants to make a transformer to step 12 V down to 6.0 V 0625/12 May/June 2013

35 A student wants to make a transformer to step 12 V down to 6.0 V. She winds 60 turns of wire around an iron core as shown in the diagram. soft-iron core 12 V a.c. 6.0 V a.c. primary coil secondary coil 60 turns How many turns of wire should she wind on the secondary coil of her transformer? A 5 B 30 C 60 D 120

1 marks

Answer: B

This question in 0625/12 May/June 2013

Q105 · The diagram shows an electrical circuit 0625/13 May/June 2013

30 The diagram shows an electrical circuit. L M N P O Between which two points must a voltmeter be connected to find the potential difference across the bell? A L and M B M and N C N and O D O and P

1 marks

Answer: D

This question in 0625/13 May/June 2013

Q106 · Which circuit could be used to determine the resistance of the resistor R? 0625/13 May/June 2013

31 Which circuit could be used to determine the resistance of the resistor R? A B V A R R A V C D V A R R V A

1 marks

Answer: B

This question in 0625/13 May/June 2013

Q107 · The circuit shows a battery and four lamps 0625/13 May/June 2013

32 The circuit shows a battery and four lamps. All the lamps are lit. One lamp fails and all the lamps go out. Which lamp failed? A B D C

1 marks

Answer: A

This question in 0625/13 May/June 2013

Q108 · The reading on the ammeter in the circuit is 1.0 A 0625/13 May/June 2013

33 The reading on the ammeter in the circuit is 1.0 A. A second ammeter is connected in the circuit. It also reads 1.0 A. At which labelled point is it connected? 1.0 A A A D B C

1 marks

Answer: D

This question in 0625/13 May/June 2013

Q109 · A student wishes to measure first the electromotive force (e.m.f.) of a battery, and then… 0625/11 Oct/Nov 2013

29 A student wishes to measure first the electromotive force (e.m.f.) of a battery, and then the potential difference (p.d.) across a resistor. She has the resistor, the battery and some connecting wires. What else does she need? A a force meter (newton meter) and a voltmeter B an ammeter and a voltmeter C an ammeter only D a voltmeter only

1 marks

Answer: D

This question in 0625/11 Oct/Nov 2013

Q110 · When the thermistor in the circuit below is heated, the current in the lamp increases 0625/11 Oct/Nov 2013

31 When the thermistor in the circuit below is heated, the current in the lamp increases. Why does this happen? A The resistance of the lamp decreases. B The resistance of the lamp increases. C The resistance of the thermistor decreases. D The resistance of the thermistor increases.

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2013

Q111 · A student connects various resistors in parallel pairs 0625/11 Oct/Nov 2013

32 A student connects various resistors in parallel pairs. Underneath each diagram is a statement about the total resistance of each pair of resistors. Which statement is correct? A B 2 Ω 5 Ω 2 Ω 1 Ω The total resistance is 4 Ω. The total resistance is between 1 Ω and 5 Ω. C D 10 Ω 20 Ω 5 Ω 10 Ω The total resistance is less than 5 Ω. The total resistance is more than 20 Ω.

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2013

Q112 · The circuit shown contains a relay 0625/11 Oct/Nov 2013

33 The circuit shown contains a relay. Both lamps are initially off. lamp 2 switch S relay lamp 1 When switch S is closed, the relay operates. What is the state of the lamps? lamp 1 lamp 2 A on on B on off C off on D off off

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2013

Q113 · The diagram shows the connections to an electric heater 0625/11 Oct/Nov 2013

34 The diagram shows the connections to an electric heater. Three fuses have been added to the circuit. heating element plastic fuse 1 case live fuse 3 fuse 2 neutral heater Which of the fuses are correctly placed? A fuse 1, fuse 2 and fuse 3 B fuse 1 and fuse 2 only C fuse 1 only D fuse 2 only

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2013

Q114 · A student wishes to measure first the electromotive force (e.m.f.) of a battery, and then… 0625/12 Oct/Nov 2013

29 A student wishes to measure first the electromotive force (e.m.f.) of a battery, and then the potential difference (p.d.) across a resistor. She has the resistor, the battery and some connecting wires. What else does she need? A a force meter (newton meter) and a voltmeter B an ammeter and a voltmeter C an ammeter only D a voltmeter only

1 marks

Answer: D

This question in 0625/12 Oct/Nov 2013

Q115 · When the thermistor in the circuit below is heated, the current in the lamp increases 0625/12 Oct/Nov 2013

30 When the thermistor in the circuit below is heated, the current in the lamp increases. Why does this happen? A The resistance of the lamp decreases. B The resistance of the lamp increases. C The resistance of the thermistor decreases. D The resistance of the thermistor increases.

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2013

Q116 · The circuit shown contains a relay 0625/12 Oct/Nov 2013

32 The circuit shown contains a relay. Both lamps are initially off. lamp 2 switch S relay lamp 1 When switch S is closed, the relay operates. What is the state of the lamps? lamp 1 lamp 2 A on on B on off C off on D off off

1 marks

Answer: A

This question in 0625/12 Oct/Nov 2013

Q117 · A student connects various resistors in parallel pairs 0625/12 Oct/Nov 2013

33 A student connects various resistors in parallel pairs. Underneath each diagram is a statement about the total resistance of each pair of resistors. Which statement is correct? A B 2 Ω 5 Ω 2 Ω 1 Ω The total resistance is 4 Ω. The total resistance is between 1 Ω and 5 Ω. C D 10 Ω 20 Ω 5 Ω 10 Ω The total resistance is less than 5 Ω. The total resistance is more than 20 Ω.

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2013

Q118 · A student wishes to measure first the electromotive force (e.m.f.) of a battery, and then… 0625/13 Oct/Nov 2013

29 A student wishes to measure first the electromotive force (e.m.f.) of a battery, and then the potential difference (p.d.) across a resistor. She has the resistor, the battery and some connecting wires. What else does she need? A a force meter (newton meter) and a voltmeter B an ammeter and a voltmeter C an ammeter only D a voltmeter only

1 marks

Answer: D

This question in 0625/13 Oct/Nov 2013

Q119 · The diagram shows an electrical component 0625/13 Oct/Nov 2013

31 The diagram shows an electrical component. What is it? A a capacitor B a light-dependent resistor C a thermistor D a variable resistor

1 marks

Answer: B

This question in 0625/13 Oct/Nov 2013

Q120 · The diagram shows a circuit 0625/13 Oct/Nov 2013

32 The diagram shows a circuit. A What should be increased to increase the current in the circuit? A the e.m.f. of the battery B the length of the connecting wires C the resistance of the resistor D the temperature of the resistor

1 marks

Answer: A

This question in 0625/13 Oct/Nov 2013

Q121 · The circuit shown contains a relay 0625/13 Oct/Nov 2013

33 The circuit shown contains a relay. Both lamps are initially off. lamp 2 switch S relay lamp 1 When switch S is closed, the relay operates. What is the state of the lamps? lamp 1 lamp 2 A on on B on off C off on D off off

1 marks

Answer: A

This question in 0625/13 Oct/Nov 2013

Q122 · The diagram shows an incomplete circuit 0625/11 May/June 2014

28 The diagram shows an incomplete circuit. X Y A Four wires of different length and thickness are connected in turn between point X and point Y. All four wires are made of the same metal. Which wire will cause the greatest reading on the ammeter? A long and thick B long and thin C short and thick D short and thin

1 marks

Answer: C

This question in 0625/11 May/June 2014

Q123 · The diagram shows a circuit containing a battery, a lamp, a switch and another component X 0625/11 May/June 2014

29 The diagram shows a circuit containing a battery, a lamp, a switch and another component X. The switch is initially closed and the lamp is lit. The switch is now opened and the lamp remains lit for several seconds before slowly going out. component X What is component X? A a capacitor B a light-dependent resistor C a thermistor D a variable resistor

1 marks

Answer: A

This question in 0625/11 May/June 2014

Q124 · The diagram shows a circuit containing three lamps and three switches S1, S2 and S3 0625/11 May/June 2014

30 The diagram shows a circuit containing three lamps and three switches S1, S2 and S3. lamp 1 S1 S2 lamp 2 S3 lamp 3 Lamp 1 and lamp 3 are lit, but lamp 2 is not lit. Which switch or switches is/are closed? A S1 only B S1 and S2 C S1 and S3 D S2 and S3

1 marks

Answer: C

This question in 0625/11 May/June 2014

Q125 · The diagram shows part of an electric circuit 0625/11 May/June 2014

31 The diagram shows part of an electric circuit. 12 V V 0 V The light falling on the light-dependent resistor (LDR) increases in brightness. What happens to the resistance of the LDR and what happens to the reading on the voltmeter? resistance of reading on LDR voltmeter A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: B

This question in 0625/11 May/June 2014

Q126 · Which labelled component in the circuit shown controls the brightness of lamp X? 0625/11 May/June 2014

32 Which labelled component in the circuit shown controls the brightness of lamp X? A V X B C D

1 marks

Answer: B

This question in 0625/11 May/June 2014

Q127 · An appliance is connected to a mains supply 0625/11 May/June 2014

33 An appliance is connected to a mains supply. Its circuit also contains a switch and a fuse. Which circuit shows the fuse in the correct position? A B appliance appliance live live neutral neutral C D appliance appliance live live neutral neutral

1 marks

Answer: B

This question in 0625/11 May/June 2014

Q128 · The diagram shows a lamp and a resistor connected in a circuit 0625/12 May/June 2014

30 The diagram shows a lamp and a resistor connected in a circuit. The lamp is too bright. Which change to the circuit will decrease the current in the lamp and make it less bright? A connecting another resistor in parallel with the one in the circuit B connecting another resistor in series with the one in the circuit C exchanging the positions of the lamp and the resistor in the circuit D increasing the e.m.f. of the battery in the circuit

1 marks

Answer: B

This question in 0625/12 May/June 2014

Q129 · Which statement is not correct for lamps connected in parallel? 0625/12 May/June 2014

31 Which statement is not correct for lamps connected in parallel? A They can be switched on and off separately. B They will remain bright if another lamp is connected in parallel. C They share the supply voltage equally between them. D They still operate if one lamp is removed.

1 marks

Answer: C

This question in 0625/12 May/June 2014

Q130 · A student connects a circuit using an uncharged capacitor C, with a large capacitance… 0625/12 May/June 2014

32 A student connects a circuit using an uncharged capacitor C, with a large capacitance, and a resistor R, with a high resistance. The switch is closed. The reading on the voltmeter P rises immediately to a maximum value, then starts to fall gradually. R V P C V Q What happens to the reading on the voltmeter Q and what happens to the energy stored in the capacitor? reading on energy stored voltmeter Q in capacitor A falls decreases B falls increases C rises decreases D rises increases

1 marks

Answer: D

This question in 0625/12 May/June 2014

Q131 · Which labelled component in the circuit shown controls the brightness of lamp X? 0625/12 May/June 2014

33 Which labelled component in the circuit shown controls the brightness of lamp X? A V X B C D

1 marks

Answer: B

This question in 0625/12 May/June 2014

Q132 · In the circuit shown, the current from the battery divides equally between the two lamps 0625/12 May/June 2014

34 In the circuit shown, the current from the battery divides equally between the two lamps. Each ammeter reads 6.0 A. A A What is a suitable rating for the fuse in this circuit? A 3.0 A B 6.0 A C 10.0 A D 13.0 A

1 marks

Answer: D

This question in 0625/12 May/June 2014

Q133 · The diagram shows a circuit containing three lamps and three switches S1, S2 and S3 0625/13 May/June 2014

26 The diagram shows a circuit containing three lamps and three switches S1, S2 and S3. lamp 1 S1 S2 lamp 2 S3 lamp 3 Lamp 1 and lamp 3 are lit, but lamp 2 is not lit. Which switch or switches is/are closed? A S1 only B S1 and S2 C S1 and S3 D S2 and S3

1 marks

Answer: C

This question in 0625/13 May/June 2014

Q134 · Which labelled component in the circuit shown controls the brightness of lamp X? 0625/13 May/June 2014

27 Which labelled component in the circuit shown controls the brightness of lamp X? A V X B C D

1 marks

Answer: B

This question in 0625/13 May/June 2014

Q135 · The diagram shows part of an electric circuit 0625/13 May/June 2014

28 The diagram shows part of an electric circuit. 12 V V 0 V The light falling on the light-dependent resistor (LDR) increases in brightness. What happens to the resistance of the LDR and what happens to the reading on the voltmeter? resistance of reading on LDR voltmeter A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: B

This question in 0625/13 May/June 2014

Q136 · The diagram shows an incomplete circuit 0625/13 May/June 2014

29 The diagram shows an incomplete circuit. X Y A Four wires of different length and thickness are connected in turn between point X and point Y. All four wires are made of the same metal. Which wire will cause the greatest reading on the ammeter? A long and thick B long and thin C short and thick D short and thin

1 marks

Answer: C

This question in 0625/13 May/June 2014

Q137 · The diagram shows a circuit containing a battery, a lamp, a switch and another component X 0625/13 May/June 2014

30 The diagram shows a circuit containing a battery, a lamp, a switch and another component X. The switch is initially closed and the lamp is lit. The switch is now opened and the lamp remains lit for several seconds before slowly going out. component X What is component X? A a capacitor B a light-dependent resistor C a thermistor D a variable resistor

1 marks

Answer: A

This question in 0625/13 May/June 2014

Q138 · An appliance is connected to a mains supply 0625/13 May/June 2014

31 An appliance is connected to a mains supply. Its circuit also contains a switch and a fuse. Which circuit shows the fuse in the correct position? A B appliance appliance live live neutral neutral C D appliance appliance live live neutral neutral

1 marks

Answer: B

This question in 0625/13 May/June 2014

Q139 · A student carries out an experiment to investigate the resistance of a resistor R 0625/11 Oct/Nov 2014

29 A student carries out an experiment to investigate the resistance of a resistor R. She takes a series of readings of potential difference (p.d.) and current, and plots a graph of her results. Which circuit should she use? A B V A A R R V C D A V A R R V

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2014

Q140 · The diagram shows a circuit with a 3.0 Ω resistor and a 2.0 Ω resistor connected in… 0625/11 Oct/Nov 2014

30 The diagram shows a circuit with a 3.0 Ω resistor and a 2.0 Ω resistor connected in parallel. 6.0 V A 3.0 Ω 2.0 Ω The switch is open, and the ammeter reads 2.0 A. The switch is now closed and the ammeter reads the total current in both resistors. What is the ammeter reading with the switch closed? A 1.2 A B 3.0 A C 4.0 A D 5.0 A

1 marks

Answer: D

This question in 0625/11 Oct/Nov 2014

Q141 · The diagram shows a torch containing two cells, a switch and a lamp 0625/11 Oct/Nov 2014

31 The diagram shows a torch containing two cells, a switch and a lamp. cells plastic case brass connecting switch strip lamp Which is the circuit diagram for the torch? A B C D

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2014

Q142 · An engineer uses the potential divider shown in the diagram 0625/11 Oct/Nov 2014

32 An engineer uses the potential divider shown in the diagram. He needs the output voltage to be one tenth ( 10 1 ) of the input voltage. X input voltage output Y voltage Which pair of values could he use for the two resistors X and Y? X / kΩ Y / kΩ A 1.0 9.0 B 1.0 10.0 C 9.0 1.0 D 10.0 1.0

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2014

Q143 · The current in a kettle is 10 A and it is protected by a 13 A fuse 0625/11 Oct/Nov 2014

33 The current in a kettle is 10 A and it is protected by a 13 A fuse. The owner of the kettle replaces the 13 A fuse with a 3 A fuse. What happens when the kettle is switched on? A The fuse blows and the kettle is damaged. B The fuse blows and the kettle is undamaged. C The fuse does not blow and the kettle works correctly. D The fuse does not blow but the kettle fails to work.

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2014

Q144 · The diagram shows a circuit with a 3.0 Ω resistor and a 2.0 Ω resistor connected in… 0625/12 Oct/Nov 2014

19 The diagram shows a circuit with a 3.0 Ω resistor and a 2.0 Ω resistor connected in parallel. 6.0 V A 3.0 Ω 2.0 Ω The switch is open, and the ammeter reads 2.0 A. The switch is now closed and the ammeter reads the total current in both resistors. What is the ammeter reading with the switch closed? A 1.2 A B 3.0 A C 4.0 A D 5.0 A

1 marks

Answer: D

This question in 0625/12 Oct/Nov 2014

Q145 · The diagram shows a torch containing two cells, a switch and a lamp 0625/12 Oct/Nov 2014

21 The diagram shows a torch containing two cells, a switch and a lamp. cells plastic case brass connecting switch strip lamp Which is the circuit diagram for the torch? A B C D

1 marks

Answer: A

This question in 0625/12 Oct/Nov 2014

Q146 · An engineer uses the potential divider shown in the diagram 0625/12 Oct/Nov 2014

24 An engineer uses the potential divider shown in the diagram. He needs the output voltage to be one tenth ( 10 1 ) of the input voltage. X input voltage output Y voltage Which pair of values could he use for the two resistors X and Y? X / kΩ Y / kΩ A 1.0 9.0 B 1.0 10.0 C 9.0 1.0 D 10.0 1.0

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2014

Q147 · A student carries out an experiment to investigate the resistance of a resistor R 0625/12 Oct/Nov 2014

36 A student carries out an experiment to investigate the resistance of a resistor R. She takes a series of readings of potential difference (p.d.) and current, and plots a graph of her results. Which circuit should she use? A B V A A R R V C D A V A R R V

1 marks

Answer: A

This question in 0625/12 Oct/Nov 2014

Q148 · A 30 Ω resistor is connected in series with another resistor and a 6.0 V battery 0625/13 Oct/Nov 2014

29 A 30 Ω resistor is connected in series with another resistor and a 6.0 V battery. The current in the circuit is 0.12 A. A voltmeter is connected across the other resistor. 6.0 V 0.12 A 30 Ω V What is the reading on the voltmeter? A 2.4 V B 3.6 V C 6.0 V D 9.6 V

1 marks

Answer: A

This question in 0625/13 Oct/Nov 2014

Q149 · A circuit contains four ammeters A, B, C and D, and three resistors with different values 0625/13 Oct/Nov 2014

30 A circuit contains four ammeters A, B, C and D, and three resistors with different values. Which ammeter shows the largest reading? A A D 10 Ω A B A 20 Ω 30 Ω A C

1 marks

Answer: D

This question in 0625/13 Oct/Nov 2014

Q150 · The diagram shows a torch containing two cells, a switch and a lamp 0625/13 Oct/Nov 2014

31 The diagram shows a torch containing two cells, a switch and a lamp. cells plastic case brass connecting switch strip lamp Which is the circuit diagram for the torch? A B C D

1 marks

Answer: A

This question in 0625/13 Oct/Nov 2014

Q151 · The diagram shows a circuit with a fixed resistor connected in series with a… 0625/13 Oct/Nov 2014

32 The diagram shows a circuit with a fixed resistor connected in series with a light-dependent resistor (LDR). A voltmeter is connected across the LDR. V A bright lamp shines light onto the LDR. The lamp is then switched off and this causes the voltmeter reading to change. Which row shows the change in the resistance of the LDR and the change in the voltmeter reading when the lamp is switched off? resistance of voltmeter LDR reading A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: D

This question in 0625/13 Oct/Nov 2014

Q152 · A student wishes to determine the resistance of a resistor 0625/12 Feb/March 2015

28 A student wishes to determine the resistance of a resistor. She uses an ammeter and a voltmeter in a circuit. In which circuit are the ammeter and voltmeter connected correctly? A B A A V V C D V A A V

1 marks

Answer: B

This question in 0625/12 Feb/March 2015

Q153 · A battery is connected to two crocodile clips and a lamp 0625/12 Feb/March 2015

29 A battery is connected to two crocodile clips and a lamp. There is a gap between the crocodile clips. crocodile clips Four cylinders W, X, Y and Z are made of the same metal but have different dimensions. The cylinders are connected in turn, by their ends, between the crocodile clips. The diagrams of the cylinders are all drawn to the same scale. W X Y Z Which cylinder makes the lamp glow most brightly and which cylinder makes the lamp glow least brightly? most brightly least brightly A W Y B W Z C X Y D X Z

1 marks

Answer: C

This question in 0625/12 Feb/March 2015

Q154 · In which circuit can the lamps be switched on and off independently? 0625/12 Feb/March 2015

30 In which circuit can the lamps be switched on and off independently? A B C D

1 marks

Answer: A

This question in 0625/12 Feb/March 2015

Q155 · Two resistors, with resistances R1 and R2, are connected in parallel 0625/12 Feb/March 2015

31 Two resistors, with resistances R1 and R2, are connected in parallel. The resistance R1 is greater than the resistance R2. R1 R2 What is the resistance of the parallel combination? A less than either R1 or R2 B equal to R1 C equal to R2 D the average of R1 and R2

1 marks

Answer: A

This question in 0625/12 Feb/March 2015

Q156 · In the circuit shown, the switch is closed for a long time, then opened 0625/12 Feb/March 2015

32 In the circuit shown, the switch is closed for a long time, then opened. voltmeter 1 V resistor capacitor V V voltmeter 2 voltmeter 3 Immediately after the switch is opened, which of the voltmeters reads zero? A voltmeter 1 only B voltmeter 2 only C voltmeter 3 only D voltmeter 1, voltmeter 2 and voltmeter 3

1 marks

Answer: B

This question in 0625/12 Feb/March 2015

Q157 · The circuit diagram shows a 4.0 Ω resistor and an 8.0 Ω resistor connected to a 6.0 V… 0625/11 May/June 2015

29 The circuit diagram shows a 4.0 Ω resistor and an 8.0 Ω resistor connected to a 6.0 V battery. 6.0 V 4.0 Ω 8.0 Ω What is the current in the battery? A 0.50 A B 0.75 A C 1.5 A D 2.0 A

1 marks

Answer: A

This question in 0625/11 May/June 2015

Q158 · The diagram shows a circuit which includes an uncharged capacitor and a switch 0625/11 May/June 2015

30 The diagram shows a circuit which includes an uncharged capacitor and a switch. Y X switch capacitor The switch can be moved between position X and position Y. What happens to the capacitor when the switch is moved to position X, and what happens when the switch is then moved to position Y? switch at X switch at Y A capacitor charges capacitor charges B capacitor charges capacitor discharges C capacitor discharges capacitor charges D capacitor discharges capacitor discharges

1 marks

Answer: B

This question in 0625/11 May/June 2015

Q159 · The diagram shows a 3.0 Ω resistor and a 6.0 Ω resistor connected in parallel 0625/11 May/June 2015

31 The diagram shows a 3.0 Ω resistor and a 6.0 Ω resistor connected in parallel. 3.0 Ω 6.0 Ω What is the total resistance of this arrangement? A less than 3.0 Ω B 3.0 Ω C 4.5 Ω D more than 6.0 Ω

1 marks

Answer: A

This question in 0625/11 May/June 2015

Q160 · The diagram shows a 10 Ω resistor and a 20 Ω resistor connected in a potential divider… 0625/11 May/June 2015

32 The diagram shows a 10 Ω resistor and a 20 Ω resistor connected in a potential divider circuit. 10 Ω 12.0 V 20 Ω V What is the reading on the voltmeter? A 4.0 V B 6.0 V C 8.0 V D 12.0 V

1 marks

Answer: C

This question in 0625/11 May/June 2015

Q161 · In the circuit shown, only one of the fuses has blown, but none of the lamps is lit 0625/11 May/June 2015

33 In the circuit shown, only one of the fuses has blown, but none of the lamps is lit. Which fuse has blown? power supply A B C D

1 marks

Answer: A

This question in 0625/11 May/June 2015

Q162 · The circuit diagram shows a 4.0 Ω resistor and an 8.0 Ω resistor connected to a 6.0 V… 0625/12 May/June 2015

28 The circuit diagram shows a 4.0 Ω resistor and an 8.0 Ω resistor connected to a 6.0 V battery. 6.0 V 4.0 Ω 8.0 Ω What is the potential difference (p.d.) across the 4.0 Ω resistor? A 0.5 V B 2.0 V C 4.0 V D 6.0 V

1 marks

Answer: D

This question in 0625/12 May/June 2015

Q163 · The diagram shows a circuit which includes an uncharged capacitor and a switch 0625/12 May/June 2015

30 The diagram shows a circuit which includes an uncharged capacitor and a switch. Y X switch capacitor The switch can be moved between position X and position Y. What happens to the capacitor when the switch is moved to position X, and what happens when the switch is then moved to position Y? switch at X switch at Y A capacitor charges capacitor charges B capacitor charges capacitor discharges C capacitor discharges capacitor charges D capacitor discharges capacitor discharges

1 marks

Answer: B

This question in 0625/12 May/June 2015

Q164 · Two 5.0 Ω resistors are connected as shown in the diagram 0625/12 May/June 2015

31 Two 5.0 Ω resistors are connected as shown in the diagram. 5.0 Ω 5.0 Ω What is the total resistance of this combination? A less than 5.0 Ω B 5.0 Ω C more than 5.0 Ω but less than 10.0 Ω D 10.0 Ω

1 marks

Answer: A

This question in 0625/12 May/June 2015

Q165 · The diagram shows a 10 Ω resistor and a 20 Ω resistor connected in a potential divider… 0625/12 May/June 2015

32 The diagram shows a 10 Ω resistor and a 20 Ω resistor connected in a potential divider circuit. 10 Ω 12.0 V 20 Ω V What is the reading on the voltmeter? A 4.0 V B 6.0 V C 8.0 V D 12.0 V

1 marks

Answer: C

This question in 0625/12 May/June 2015

Q166 · In the circuit shown, only one of the fuses has blown, but none of the lamps is lit 0625/12 May/June 2015

33 In the circuit shown, only one of the fuses has blown, but none of the lamps is lit. Which fuse has blown? power supply A B C D

1 marks

Answer: A

This question in 0625/12 May/June 2015

Q167 · The circuit diagram shows a 4.0 Ω resistor and an 8.0 Ω resistor connected to a 6.0 V… 0625/13 May/June 2015

29 The circuit diagram shows a 4.0 Ω resistor and an 8.0 Ω resistor connected to a 6.0 V battery. 6.0 V 4.0 Ω 8.0 Ω What is the current in the 8.0 Ω resistor? A 0 A B 0.50 A C 0.75 A D 1.0 A

1 marks

Answer: C

This question in 0625/13 May/June 2015

Q168 · The diagram shows a circuit which includes an uncharged capacitor and a switch 0625/13 May/June 2015

30 The diagram shows a circuit which includes an uncharged capacitor and a switch. Y X switch capacitor The switch can be moved between position X and position Y. What happens to the capacitor when the switch is moved to position X, and what happens when the switch is then moved to position Y? switch at X switch at Y A capacitor charges capacitor charges B capacitor charges capacitor discharges C capacitor discharges capacitor charges D capacitor discharges capacitor discharges

1 marks

Answer: B

This question in 0625/13 May/June 2015

Q169 · Which component is represented by this circuit symbol? 0625/13 May/June 2015

31 Which component is represented by this circuit symbol? A a bell B a fuse C a relay D a transformer

1 marks

Answer: C

This question in 0625/13 May/June 2015

Q170 · The diagram shows a 10 Ω resistor and a 20 Ω resistor connected in a potential divider… 0625/13 May/June 2015

32 The diagram shows a 10 Ω resistor and a 20 Ω resistor connected in a potential divider circuit. 10 Ω 12.0 V 20 Ω V What is the reading on the voltmeter? A 4.0 V B 6.0 V C 8.0 V D 12.0 V

1 marks

Answer: C

This question in 0625/13 May/June 2015

Q171 · In the circuit shown, only one of the fuses has blown, but none of the lamps is lit 0625/13 May/June 2015

33 In the circuit shown, only one of the fuses has blown, but none of the lamps is lit. Which fuse has blown? power supply A B C D

1 marks

Answer: A

This question in 0625/13 May/June 2015

Q172 · A student uses the circuit shown to determine the resistance of the two identical… 0625/14 May/June 2015

30 A student uses the circuit shown to determine the resistance of the two identical resistors. A V The voltmeter reading is 2.2 V and the ammeter reading is 0.25 A. What is the resistance of each resistor? A 0.275 Ω B 0.55 Ω C 4.4 Ω D 8.8 Ω

1 marks

Answer: C

This question in 0625/14 May/June 2015

Q173 · Which component is represented by this circuit symbol? 0625/14 May/June 2015

31 Which component is represented by this circuit symbol? A a bell B a fuse C a relay D a transformer

1 marks

Answer: C

This question in 0625/14 May/June 2015

Q174 · A student sets up this circuit 0625/14 May/June 2015

32 A student sets up this circuit. What is the purpose of the circuit? A to allow a lamp to be made dimmer or brighter as required B to amplify the sound of a voice C to light a lamp in the dark D to sound a bell when the temperature rises

1 marks

Answer: D

This question in 0625/14 May/June 2015

Q175 · In an electrical circuit, what is the purpose of a fuse? 0625/14 May/June 2015

35 In an electrical circuit, what is the purpose of a fuse? A to connect the metal case of an appliance to the earth B to cut off the electrical supply if the current is too large C to keep an electrical appliance dry in damp conditions D to maintain a steady voltage as the current varies

1 marks

Answer: B

This question in 0625/14 May/June 2015

Q176 · What is the circuit symbol for a variable resistor? 0625/11 Oct/Nov 2015

30 What is the circuit symbol for a variable resistor? A B C D

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2015

Q177 · The diagram shows a circuit containing three ammeters P, Q and R 0625/11 Oct/Nov 2015

31 The diagram shows a circuit containing three ammeters P, Q and R. P A Q A R A Which statement about the readings on the ammeters is correct? A The reading on P is equal to the reading on Q. B The reading on P is equal to the reading on R. C The reading on Q is greater than the reading on P. D The reading on Q is greater than the reading on R.

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2015

Q178 · The diagram shows a light-dependent resistor (LDR) connected in a potential divider… 0625/11 Oct/Nov 2015

32 The diagram shows a light-dependent resistor (LDR) connected in a potential divider circuit. V The brightness of the light falling on the LDR is increased. Which row shows what happens to the resistance of the LDR, and what happens to the reading on the voltmeter? resistance of LDR reading on voltmeter A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2015

Q179 · Four lamps are each labelled '60 W 230 V' 0625/11 Oct/Nov 2015

33 Four lamps are each labelled '60 W 230 V'. In which circuit are the lamps connected so that they operate at normal brightness? A B C D 230 V 230 V 230 V 230 V

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2015

Q180 · Which circuit shows a voltmeter measuring the p.d 0625/12 Oct/Nov 2015

28 Which circuit shows a voltmeter measuring the p.d. across a resistor? A B V V C D V V

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2015

Q181 · A student has four pieces of resistance wire made of the same material 0625/12 Oct/Nov 2015

29 A student has four pieces of resistance wire made of the same material. Each piece is connected in turn between the terminals X and Y in the circuit. X Y In which wire is the current the largest? length of wire / m diameter of wire / mm A 0.5 0.5 B 0.5 1.0 C 1.0 0.5 D 1.0 1.0

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2015

Q182 · A student connects the circuit shown 0625/12 Oct/Nov 2015

30 A student connects the circuit shown. 1 2 3 4 Which switches must be closed for both the bell to ring and the lamp to light? A 1 and 4 only B 2 and 3 only C 1, 2 and 3 only D 1, 2, 3 and 4

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2015

Q183 · Two resistors are connected in parallel 0625/12 Oct/Nov 2015

31 Two resistors are connected in parallel. 20 Ω 30 Ω Which value could be the resistance of the combination? A 12 Ω B 20 Ω C 25 Ω D 50 Ω

1 marks

Answer: A

This question in 0625/12 Oct/Nov 2015

Q184 · The circuit contains a variable potential divider PQ, a lamp and a voltmeter 0625/12 Oct/Nov 2015

32 The circuit contains a variable potential divider PQ, a lamp and a voltmeter. power supply + – P Q sliding contact V The sliding contact of the potential divider is moved towards end Q. What happens to the brightness of the lamp and what happens to the voltmeter reading? brightness of lamp voltmeter reading A becomes brighter decreases B becomes brighter increases C does not change decreases D does not change increases

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2015

Q185 · Four lamps are each labelled '60 W 230 V' 0625/12 Oct/Nov 2015

33 Four lamps are each labelled '60 W 230 V'. In which circuit are the lamps connected so that they operate at normal brightness? A B C D 230 V 230 V 230 V 230 V

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2015

Q186 · The circuit shown contains a battery, a 6.0 Ω resistor and two meters X and Y 0625/13 Oct/Nov 2015

29 The circuit shown contains a battery, a 6.0 Ω resistor and two meters X and Y. One meter records current and one meter records potential difference. meter X 6.0 Ω meter Y Which row shows possible values for the readings on the meters? meter X meter Y A 2.0 A 12 V B 2.0 V 12 A C 12 A 2.0 V D 12 V 2.0 A

1 marks

Answer: A

This question in 0625/13 Oct/Nov 2015

Q187 · A student designs a circuit to switch on a lamp after a time delay 0625/13 Oct/Nov 2015

30 A student designs a circuit to switch on a lamp after a time delay. Which components are used in a time-delay circuit? A a light-dependent resistor and a relay B a resistor and a capacitor C a resistor and a transformer D a thermistor and a variable resistor

1 marks

Answer: B

This question in 0625/13 Oct/Nov 2015

Q188 · Identical resistors are connected together to form arrangements X, Y and Z 0625/13 Oct/Nov 2015

31 Identical resistors are connected together to form arrangements X, Y and Z. arrangement X arrangement Y arrangement Z What is the correct order of the resistances of the arrangements from the largest to the smallest? A X → Y → Z B Y → X → Z C Z → X → Y D Z → Y → X

1 marks

Answer: D

This question in 0625/13 Oct/Nov 2015

Q189 · The diagram shows a potential divider circuit 0625/13 Oct/Nov 2015

32 The diagram shows a potential divider circuit. V P V Q The resistance of the variable resistor is increased. Which row shows what happens to the readings on voltmeter P and on voltmeter Q? reading on voltmeter P reading on voltmeter Q A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: C

This question in 0625/13 Oct/Nov 2015

Q190 · Four lamps are each labelled '60 W 230 V' 0625/13 Oct/Nov 2015

33 Four lamps are each labelled '60 W 230 V'. In which circuit are the lamps connected so that they operate at normal brightness? A B C D 230 V 230 V 230 V 230 V

1 marks

Answer: B

This question in 0625/13 Oct/Nov 2015

Q191 · Four lamps are each labelled 240 V 0625/12 Feb/March 2016

31 Four lamps are each labelled 240 V. In which circuit do all four lamps have normal brightness? A B 240 V 240 V C D 240 V 240 V

1 marks

Answer: C

This question in 0625/12 Feb/March 2016

Q192 · The diagram shows a 40 Ω resistor and a 60 Ω resistor connected in parallel 0625/12 Feb/March 2016

32 The diagram shows a 40 Ω resistor and a 60 Ω resistor connected in parallel. 60 Ω P Q 40 Ω What is the total resistance between points P and Q? A less than 40 Ω B 50 Ω C between 60 Ω and 100 Ω D 100 Ω

1 marks

Answer: A

This question in 0625/12 Feb/March 2016

Q193 · The diagram shows a potential divider connected to two voltmeters P and Q 0625/12 Feb/March 2016

33 The diagram shows a potential divider connected to two voltmeters P and Q. V voltmeter P V voltmeter Q The resistance of the variable resistor is decreased. Which row shows what happens to the reading on each voltmeter? reading on reading on voltmeter P voltmeter Q A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: B

This question in 0625/12 Feb/March 2016

Q194 · The circuit shown includes two meters X and Y, connected correctly 0625/11 May/June 2016

29 The circuit shown includes two meters X and Y, connected correctly. X Y Which row gives the unit of the quantity measured by X and the unit of the quantity measured by Y? meter X meter Y A ampere ampere B ampere volt C volt ampere D volt volt

1 marks

Answer: D

This question in 0625/11 May/June 2016

Q195 · What is the function of a relay? 0625/11 May/June 2016

31 What is the function of a relay? A to allow a current in one circuit to operate a switch in another circuit B to prevent an electric shock by earthing a metal case C to protect a circuit by melting if the current becomes too large D to transform a d.c. voltage to a different value

1 marks

Answer: A

This question in 0625/11 May/June 2016

Q196 · The circuit shown contains three ammeters X, Y and Z 0625/11 May/June 2016

32 The circuit shown contains three ammeters X, Y and Z. X A Z A 10 Ω A 20 Ω Y Which ammeter has the largest reading? A X B Y C Z D They all have the same reading.

1 marks

Answer: C

This question in 0625/11 May/June 2016

Q197 · The diagram shows part of a circuit used to switch street lamps on and off automatically 0625/11 May/June 2016

33 The diagram shows part of a circuit used to switch street lamps on and off automatically. + LDR – In the evening it gets dark. Which row shows the effect on the resistance of the light-dependent resistor (LDR) and on the potential difference (p.d.) across it? resistance of LDR p.d. across LDR A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: D

This question in 0625/11 May/June 2016

Q198 · A domestic circuit includes a 30 A fuse 0625/11 May/June 2016

34 A domestic circuit includes a 30 A fuse. This protects the wiring if there is too much current in the circuit. In which wire is the 30 A fuse positioned, and what does it do when it operates? position operation A live wire disconnects the circuit B live wire reduces the current to 30 A C neutral wire disconnects the circuit D neutral wire reduces the current to 30 A

1 marks

Answer: A

This question in 0625/11 May/June 2016

Q199 · Two meters are connected in a circuit to measure the current in a component and the… 0625/12 May/June 2016

29 Two meters are connected in a circuit to measure the current in a component and the potential difference across the component. Which meters are used and how are they connected to the component? A an ammeter in parallel for current, a voltmeter in series for potential difference B an ammeter in series for current, a voltmeter in parallel for potential difference C a voltmeter in parallel for current, an ammeter in series for potential difference D a voltmeter in series for current, an ammeter in parallel for potential difference

1 marks

Answer: B

This question in 0625/12 May/June 2016

Q200 · P and Q are the circuit symbols for two electrical components 0625/12 May/June 2016

31 P and Q are the circuit symbols for two electrical components. P Q Which components are represented by P and by Q? P Q A thermistor fuse B thermistor relay C variable resistor fuse D variable resistor relay

1 marks

Answer: A

This question in 0625/12 May/June 2016

Q201 · The diagram shows two resistors connected in a circuit 0625/12 May/June 2016

32 The diagram shows two resistors connected in a circuit. 6.0 Ω 12 Ω What could be the combined resistance of this arrangement of resistors? A 4.0 Ω B 6.0 Ω C 9.0 Ω D 18 Ω

1 marks

Answer: A

This question in 0625/12 May/June 2016

Q202 · The diagram shows part of a circuit used to switch street lamps on and off automatically 0625/12 May/June 2016

33 The diagram shows part of a circuit used to switch street lamps on and off automatically. + LDR – In the evening it gets dark. Which row shows the effect on the resistance of the light-dependent resistor (LDR) and on the potential difference (p.d.) across it? resistance of LDR p.d. across LDR A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: D

This question in 0625/12 May/June 2016

Q203 · A domestic circuit includes a 30 A fuse 0625/12 May/June 2016

34 A domestic circuit includes a 30 A fuse. This protects the wiring if there is too much current in the circuit. In which wire is the 30 A fuse positioned, and what does it do when it operates? position operation A live wire disconnects the circuit B live wire reduces the current to 30 A C neutral wire disconnects the circuit D neutral wire reduces the current to 30 A

1 marks

Answer: A

This question in 0625/12 May/June 2016

Q204 · The diagram shows a battery connected to two resistors 0625/13 May/June 2016

30 The diagram shows a battery connected to two resistors. R Four students separately measure the electromotive force (e.m.f.) of the battery, the current in the resistors, and the potential difference (p.d.) across resistor R. Their results are shown in the table below. Which row shows values with their correct units? e.m.f. current p.d. A 3.0 A 0.30 V 1.5 A B 3.0 A 0.30 A 1.5 V C 3.0 V 0.30 V 1.5 A D 3.0 V 0.30 A 1.5 V

1 marks

Answer: D

This question in 0625/13 May/June 2016

Q205 · Why are lamps in a house lighting circuit connected in parallel rather than in series? 0625/13 May/June 2016

31 Why are lamps in a house lighting circuit connected in parallel rather than in series? A If one lamp stops working, the remaining lamps become brighter. B Less current is taken from the power supply. C The lamps can be turned off independently using switches. D When more lamps are added, their brightness decreases.

1 marks

Answer: C

This question in 0625/13 May/June 2016

Q206 · The diagram shows a cell connected to two 6.0 Ω resistors 0625/13 May/June 2016

32 The diagram shows a cell connected to two 6.0 Ω resistors. Three currents, I1, I2 and I3, are labelled. I1 6.0 Ω I2 6.0 Ω I3 Which row correctly compares I2 and I3 with I1? I2 I3 A same as I1 same as I1 B same as I1 smaller than I1 C smaller than I1 same as I1 D smaller than I1 smaller than I1

1 marks

Answer: D

This question in 0625/13 May/June 2016

Q207 · The diagram shows part of a circuit used to switch street lamps on and off automatically 0625/13 May/June 2016

33 The diagram shows part of a circuit used to switch street lamps on and off automatically. + LDR – In the evening it gets dark. Which row shows the effect on the resistance of the light-dependent resistor (LDR) and on the potential difference (p.d.) across it? resistance of LDR p.d. across LDR A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: D

This question in 0625/13 May/June 2016

Q208 · The diagram shows a lamp in a circuit 0625/11 Oct/Nov 2016

29 The diagram shows a lamp in a circuit. P Which change to the circuit would increase the current in the lamp? A adding another resistor in parallel with the one in the circuit B adding another resistor in series with the one in the circuit C decreasing the electromotive force (e.m.f.) of the battery in the circuit D moving the lamp to point P in the circuit

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2016

Q209 · An ammeter and an 18 Ω resistor are connected in series with a battery 0625/11 Oct/Nov 2016

30 An ammeter and an 18 Ω resistor are connected in series with a battery. The reading on the ammeter is 0.50 A. A 18 Ω What is the electromotive force (e.m.f.) of the battery? A 9.0 N B 9.0 V C 36 N D 36 V

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2016

Q210 · A source of constant electromotive force (e.m.f.) is connected across a thermistor 0625/11 Oct/Nov 2016

31 A source of constant electromotive force (e.m.f.) is connected across a thermistor. There is an electric current in the thermistor. current The temperature of the thermistor is reduced. Which row shows what happens to the resistance of the thermistor and what happens to the current? resistance current A increases decreases B increases increases C stays the same decreases D stays the same increases

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2016

Q211 · The diagram shows a circuit containing a battery, a resistor with high resistance, a… 0625/11 Oct/Nov 2016

32 The diagram shows a circuit containing a battery, a resistor with high resistance, a switch and a lamp. 12 V battery 12 V resistor lamp Initially the switch is open. What happens to the lamp when the switch is closed? A It glows more brightly. B It glows less brightly. C It goes out. D Its brightness does not change.

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2016

Q212 · The diagram shows a circuit containing two identical lamps and three ammeters 0625/11 Oct/Nov 2016

33 The diagram shows a circuit containing two identical lamps and three ammeters. ammeter 1 A A ammeter 3 A ammeter 2 The current in ammeter 1 is 0.30 A. Which row gives possible values for the currents in ammeters 2 and 3? ammeter 2 ammeter 3 / A / A A 0.15 0.00 B 0.15 0.30 C 0.30 0.00 D 0.30 0.30

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2016

Q213 · The diagram shows a lamp in a circuit 0625/12 Oct/Nov 2016

29 The diagram shows a lamp in a circuit. P Which change to the circuit would increase the current in the lamp? A adding another resistor in parallel with the one in the circuit B adding another resistor in series with the one in the circuit C decreasing the electromotive force (e.m.f.) of the battery in the circuit D moving the lamp to point P in the circuit

1 marks

Answer: A

This question in 0625/12 Oct/Nov 2016

Q214 · An ammeter and an 18 Ω resistor are connected in series with a battery 0625/12 Oct/Nov 2016

30 An ammeter and an 18 Ω resistor are connected in series with a battery. The reading on the ammeter is 0.50 A. A 18 Ω What is the electromotive force (e.m.f.) of the battery? A 9.0 N B 9.0 V C 36 N D 36 V

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2016

Q215 · A source of constant electromotive force (e.m.f.) is connected across a light-dependent… 0625/12 Oct/Nov 2016

31 A source of constant electromotive force (e.m.f.) is connected across a light-dependent resistor (LDR). There is an electric current in the LDR. current The brightness of the light falling on the LDR is reduced. Which row shows what happens to the resistance of the LDR and what happens to the current? resistance current A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2016

Q216 · The diagram shows an electric circuit 0625/12 Oct/Nov 2016

32 The diagram shows an electric circuit. R S T switch When the switch is open, which lamp or lamps are not lit? A R only B S only C R, S and T D S and T only

1 marks

Answer: D

This question in 0625/12 Oct/Nov 2016

Q217 · In which circuit does the ammeter read 2.0 A? 0625/12 Oct/Nov 2016

33 In which circuit does the ammeter read 2.0 A? A B 12 V 12 V A A 6.0 Ω 6.0 Ω 3.0 Ω 3.0 Ω C D 6.0 V 18 V A A 6.0 Ω 6.0 Ω 3.0 Ω 3.0 Ω

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2016

Q218 · The diagram shows a lamp in a circuit 0625/13 Oct/Nov 2016

29 The diagram shows a lamp in a circuit. P Which change to the circuit would increase the current in the lamp? A adding another resistor in parallel with the one in the circuit B adding another resistor in series with the one in the circuit C decreasing the electromotive force (e.m.f.) of the battery in the circuit D moving the lamp to point P in the circuit

1 marks

Answer: A

This question in 0625/13 Oct/Nov 2016

Q219 · An ammeter and an 18 Ω resistor are connected in series with a battery 0625/13 Oct/Nov 2016

30 An ammeter and an 18 Ω resistor are connected in series with a battery. The reading on the ammeter is 0.50 A. A 18 Ω What is the electromotive force (e.m.f.) of the battery? A 9.0 N B 9.0 V C 36 N D 36 V

1 marks

Answer: B

This question in 0625/13 Oct/Nov 2016

Q220 · In which circuit will the ammeter reading be greatest? 0625/13 Oct/Nov 2016

31 In which circuit will the ammeter reading be greatest? A B C D 2.0 V 2.0 V 2.0 V 2.0 V A A 2.0 Ω A 2.0 Ω A 2.0 Ω 2.0 Ω 2.0 Ω 2.0 Ω 2.0 Ω 2.0 Ω

1 marks

Answer: B

This question in 0625/13 Oct/Nov 2016

Q221 · The diagram shows a potential divider 0625/13 Oct/Nov 2016

33 The diagram shows a potential divider. 6 V 0 V When brighter light falls on the light-dependent resistor (LDR), its resistance changes. What happens to the resistance of the LDR and what happens to the current in it? resistance of LDR current in LDR A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: B

This question in 0625/13 Oct/Nov 2016

Q222 · In the circuits shown, each of the resistors has a resistance of 1.0 Ω 0625/12 Feb/March 2017

32 In the circuits shown, each of the resistors has a resistance of 1.0 Ω. Which circuit has the greatest resistance? A B C D

1 marks

Answer: C

This question in 0625/12 Feb/March 2017

Q223 · The diagram shows an electric circuit 0625/12 Feb/March 2017

33 The diagram shows an electric circuit. V The light falling on the light-dependent resistor (LDR) increases in brightness. What happens to the resistance of the LDR, the current in the fixed resistor and the reading on the voltmeter? resistance of current in reading on LDR fixed resistor voltmeter A decreases increases decreases B decreases increases increases C increases decreases decreases D increases decreases increases

1 marks

Answer: B

This question in 0625/12 Feb/March 2017

Q224 · The diagram shows two linked circuits to control when a bell is switched on 0625/12 Feb/March 2017

34 The diagram shows two linked circuits to control when a bell is switched on. The conditions are altered and only one pair of conditions causes the bell to ring. Which pair causes the bell to ring? A bright light and high temperature B bright light and low temperature C dim light and high temperature D dim light and low temperature

1 marks

Answer: A

This question in 0625/12 Feb/March 2017

Q225 · In this circuit, a component at X automatically protects the wiring from overheating if… 0625/12 Feb/March 2017

35 In this circuit, a component at X automatically protects the wiring from overheating if there is a fault. electrical supply Which row indicates components that are suitable? circuit . breaker fuse switch JV key JY = suitable X = not suitable 0 ONO DW > ~~ KOM Kk 4 4 ~*~ {Kw K&

1 marks

Answer: B

This question in 0625/12 Feb/March 2017

Q226 · The circuit shows a 2.0 Ω resistor and a 1.0 Ω resistor connected to a 12 V battery 0625/11 May/June 2017

29 The circuit shows a 2.0 Ω resistor and a 1.0 Ω resistor connected to a 12 V battery. 12 V 2.0 Ω 1.0 Ω What is the current in the 2.0 Ω resistor? A 4.0 A B 6.0 A C 24 A D 36 A

1 marks

Answer: A

This question in 0625/11 May/June 2017

Q227 · A computer engineer wants the speed of a fan to increase automatically when the… 0625/11 May/June 2017

30 A computer engineer wants the speed of a fan to increase automatically when the temperature inside a computer rises. The engineer knows that a larger current causes the fan to turn more quickly. fan motor power M supply X computer Which component should be placed at X to make this happen? A a relay B a thermistor C a transformer D a variable resistor

1 marks

Answer: B

This question in 0625/11 May/June 2017

Q228 · The diagram shows a power supply with a constant electromotive force (e.m.f.) 0625/11 May/June 2017

31 The diagram shows a power supply with a constant electromotive force (e.m.f.). It is connected to a voltmeter, a variable resistor and two identical lamps, P and Q. Both lamps are lit. V P Q The resistance of the variable resistor is increased. The voltmeter reading remains unchanged. What happens to the brightness of the lamps? lamp P lamp Q A brighter brighter B dimmer dimmer C dimmer unchanged D unchanged unchanged

1 marks

Answer: D

This question in 0625/11 May/June 2017

Q229 · A student connects a variable potential divider (potentiometer) circuit 0625/11 May/June 2017

32 A student connects a variable potential divider (potentiometer) circuit. R T V 12 V S As the sliding terminal T is moved from R to S, what happens to the reading on the voltmeter? A It decreases from 12 V to 0 V. B It increases from 0 V to 12 V. C It remains at 0 V. D It remains at 12 V.

1 marks

Answer: B

This question in 0625/11 May/June 2017

Q230 · A light-dependent resistor (LDR) and a resistor R are connected in a series circuit 0625/11 May/June 2017

33 A light-dependent resistor (LDR) and a resistor R are connected in a series circuit. Light falls on the LDR. A R The brightness of the light falling on the LDR decreases. What happens to the resistance of the LDR and what happens to the reading on the ammeter? resistance reading on of LDR ammeter A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: C

This question in 0625/11 May/June 2017

Q231 · The circuit diagram shows three resistors connected in series across a 6.0 V supply 0625/12 May/June 2017

29 The circuit diagram shows three resistors connected in series across a 6.0 V supply. 6.0 V 3.0 Ω 4.0 Ω 5.0 Ω What is the potential difference (p.d.) across the 4.0 Ω resistor? A 0.67 V B 1.5 V C 2.0 V D 6.0 V

1 marks

Answer: C

This question in 0625/12 May/June 2017

Q232 · A thermistor is connected in series with a sensitive ammeter and a battery 0625/12 May/June 2017

30 A thermistor is connected in series with a sensitive ammeter and a battery. thermistor A Which change will give a larger ammeter reading? A adding another thermistor in series B cooling the thermistor C heating the thermistor D reducing the number of cells in the battery

1 marks

Answer: C

This question in 0625/12 May/June 2017

Q233 · Three ammeters measure the currents in different parts of the circuit shown 0625/12 May/June 2017

31 Three ammeters measure the currents in different parts of the circuit shown. The diagram indicates the reading on the ammeters. 18 Ω A 3.0 A A 2.0 A 6 Ω A 1.5 A How do we know that at least one of the ammeters must be faulty? A All three ammeters must read the same value. B All the current takes the easier path through the 6 Ω resistor. C The current from the battery must be equal to the sum of the currents in the two resistors. D The current in the two parallel resistors must be the same.

1 marks

Answer: C

This question in 0625/12 May/June 2017

Q234 · A student connects a variable potential divider (potentiometer) circuit 0625/12 May/June 2017

32 A student connects a variable potential divider (potentiometer) circuit. R T V 12 V S What happens to the reading on the voltmeter as the sliding terminal T is moved from R to S? A It decreases from 12 V to 0 V. B It increases from 0 V to 12 V. C It remains at 0 V. D It remains at 12 V.

1 marks

Answer: B

This question in 0625/12 May/June 2017

Q235 · The diagram shows an electric circuit 0625/12 May/June 2017

33 The diagram shows an electric circuit. 20 Ω 0.40 A 10 Ω What is the potential difference (p.d.) across the LDR? A 4.0 V B 8.0 V C 25 V D 50 V

1 marks

Answer: B

This question in 0625/12 May/June 2017

Q236 · The diagram shows a circuit containing two resistors of resistance 1.0 Ω and 2.0 Ω 0625/13 May/June 2017

29 The diagram shows a circuit containing two resistors of resistance 1.0 Ω and 2.0 Ω. A voltmeter is connected across the 1.0 Ω resistor by connecting P to X. The reading on the voltmeter is 6.0 V. 1.0 Ω X 2.0 Ω Y P V P is moved to point Y in the circuit. What is the new reading on the voltmeter? A 3.0 V B 6.0 V C 12 V D 18 V

1 marks

Answer: D

This question in 0625/13 May/June 2017

Q237 · The circuit diagram shows a simple circuit with a battery of electromotive force (e.m.f.)… 0625/13 May/June 2017

30 The circuit diagram shows a simple circuit with a battery of electromotive force (e.m.f.) 6.0 V and two bulbs each of resistance 2.0 Ω. ammeter 1 A A ammeter 2 Which row gives the readings on the ammeters? reading on reading on ammeter 1 / A ammeter 2 / A A 1.5 0 B 1.5 1.5 C 3.0 0 D 3.0 1.5

1 marks

Answer: B

This question in 0625/13 May/June 2017

Q238 · The diagram shows three identical heating elements connected to a power supply 0625/13 May/June 2017

31 The diagram shows three identical heating elements connected to a power supply. switch 1 switch 2 switch 3 power supply Which arrangement of switches causes most power to be used? switch 1 switch 2 switch 3 A closed closed closed B closed open closed C closed open open D open closed closed

1 marks

Answer: A

This question in 0625/13 May/June 2017

Q239 · A student connects a variable potential divider (potentiometer) circuit 0625/13 May/June 2017

32 A student connects a variable potential divider (potentiometer) circuit. R T V 12 V S What happens to the reading on the voltmeter as the sliding terminal T is moved from R to S? A It decreases from 12 V to 0 V. B It increases from 0 V to 12 V. C It remains at 0 V. D It remains at 12 V.

1 marks

Answer: B

This question in 0625/13 May/June 2017

Q240 · The diagram shows a circuit used to make a light detector 0625/13 May/June 2017

33 The diagram shows a circuit used to make a light detector. A X Y One component is connected between X and Y. Which component causes the ammeter reading to increase when the light gets brighter? A B C D

1 marks

Answer: A

This question in 0625/13 May/June 2017

Q241 · What is the purpose of a relay? 0625/13 May/June 2017

36 What is the purpose of a relay? A to change a large voltage into a small voltage B to change a small voltage into a large voltage C to use a large current to switch on a small current D to use a small current to switch on a large current

1 marks

Answer: D

This question in 0625/13 May/June 2017

Q242 · A student connects a circuit with a power supply, a lamp and an ammeter 0625/11 Oct/Nov 2017

31 A student connects a circuit with a power supply, a lamp and an ammeter. Where must the ammeter be connected? A in parallel with the lamp to measure current in the lamp B in parallel with the lamp to measure potential difference across the lamp C in series with the lamp to measure current in the lamp D in series with the lamp to measure potential difference across the lamp

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2017

Q243 · Two 3.0 Ω resistors are connected in parallel 0625/11 Oct/Nov 2017

32 Two 3.0 Ω resistors are connected in parallel. Which statement about their combined resistance is correct? A The combined resistance is less than 3.0 Ω. B The combined resistance is 3.0 Ω. C The combined resistance is more than 3.0 Ω but less than 6.0 Ω. D The combined resistance is 6.0 Ω.

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2017

Q244 · The diagram shows a potential divider circuit 0625/11 Oct/Nov 2017

33 The diagram shows a potential divider circuit. X Z slider V Y How does the movement of the slider affect the voltmeter reading? movement voltmeter of slider reading A Z to X falls to zero B Z to X increases C Z to Y falls to zero D Z to Y increases

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2017

Q245 · The diagram shows a circuit with a fixed resistor connected in series with a thermistor… 0625/11 Oct/Nov 2017

34 The diagram shows a circuit with a fixed resistor connected in series with a thermistor and an ammeter. A Which row shows how temperature change affects the resistance of the thermistor and the current in the circuit? resistance of temperature current in circuit thermistor A decreases decreases increases B decreases increases decreases C increases decreases decreases D increases increases increases

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2017

Q246 · An appliance is connected to a mains supply 0625/11 Oct/Nov 2017

35 An appliance is connected to a mains supply. Its circuit also contains a switch and a fuse. Which circuit shows the fuse in the correct position? A B appliance appliance live live neutral neutral C D appliance appliance live live neutral neutral

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2017

Q247 · Which circuit can be used to determine the resistance of resistor R? 0625/12 Oct/Nov 2017

30 Which circuit can be used to determine the resistance of resistor R? A B C D V V A A V R R R V R A A

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2017

Q248 · The circuit diagram shows a 4.0 Ω resistor and an 8.0 Ω resistor connected to a 6.0 V… 0625/12 Oct/Nov 2017

32 The circuit diagram shows a 4.0 Ω resistor and an 8.0 Ω resistor connected to a 6.0 V battery. 6.0 V 4.0 Ω 8.0 Ω What is the potential difference (p.d.) across the 4.0 Ω resistor? A 0.5 V B 2.0 V C 4.0 V D 6.0 V

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2017

Q249 · The diagram shows a motor and a light-dependent resistor (LDR) connected in a circuit 0625/12 Oct/Nov 2017

33 The diagram shows a motor and a light-dependent resistor (LDR) connected in a circuit. M Which change decreases the current in the motor so that it turns more slowly? A connecting a resistor in parallel with the LDR B connecting a resistor in series with the LDR C exchanging the positions of the motor and the LDR in the circuit D increasing the brightness of the light falling on the LDR

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2017

Q250 · The diagram shows a circuit with a fixed resistor connected in series with a thermistor… 0625/12 Oct/Nov 2017

34 The diagram shows a circuit with a fixed resistor connected in series with a thermistor and an ammeter. A Which row shows how temperature change affects the resistance of the thermistor and the current in the circuit? resistance of temperature current in circuit thermistor A decreases decreases increases B decreases increases decreases C increases decreases decreases D increases increases increases

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2017

Q251 · The diagram shows a circuit symbol for a component that can be used as an input transducer 0625/13 Oct/Nov 2017

30 The diagram shows a circuit symbol for a component that can be used as an input transducer. Which graph shows how the resistance of the component varies with its intended input variable? A B resistance resistance 0 0 0 temperature 0 temperature C D resistance resistance 0 0 0 light intensity 0 light intensity

1 marks

Answer: C

This question in 0625/13 Oct/Nov 2017

Q252 · Which statement is not correct for two identical lamps connected in parallel? 0625/13 Oct/Nov 2017

31 Which statement is not correct for two identical lamps connected in parallel? A The potential difference across each lamp is half the supply voltage. B The remaining lamp still operates when one lamp is removed. C They can be switched on and off separately. D They remain bright if another lamp is connected in parallel.

1 marks

Answer: A

This question in 0625/13 Oct/Nov 2017

Q253 · Only one of the ammeters in the circuit is showing an incorrect reading 0625/13 Oct/Nov 2017

32 Only one of the ammeters in the circuit is showing an incorrect reading. Which ammeter is showing the incorrect reading? ammeter A: reading = 0.30 A A A ammeter B: reading = 0.10 A ammeter D: A reading = 0.20 A A ammeter C: reading = 0.25 A

1 marks

Answer: C

This question in 0625/13 Oct/Nov 2017

Q254 · The diagram shows a circuit with a fixed resistor connected in series with a thermistor… 0625/13 Oct/Nov 2017

33 The diagram shows a circuit with a fixed resistor connected in series with a thermistor and an ammeter. A Which row shows how temperature change affects the resistance of the thermistor and the current in the circuit? resistance of temperature current in circuit thermistor A decreases decreases increases B decreases increases decreases C increases decreases decreases D increases increases increases

1 marks

Answer: B

This question in 0625/13 Oct/Nov 2017

Q255 · The diagram shows a cell connected to three resistors R1, R2 and R3 0625/11 May/June 2018

29 The diagram shows a cell connected to three resistors R1, R2 and R3. position 1 position 4 R1 R2 position 2 position 3 R3 A student connects an ammeter first in position 1, then in position 2, 3 and 4 in turn. In which positions does the ammeter show the current in R1? A 1, 2 and 4 B 1 and 2 only C 3 only D 4 only

1 marks

Answer: A

This question in 0625/11 May/June 2018

Q256 · The diagram shows three identical resistors, three ammeters and a battery, connected in a… 0625/11 May/June 2018

32 The diagram shows three identical resistors, three ammeters and a battery, connected in a circuit. ammeter 1 A ammeter 2 A A ammeter 3 What is the order of the magnitudes of the readings on the ammeters from smallest to largest? smallest intermediate largest A ammeter 1 ammeter 2 ammeter 3 B ammeter 1 ammeter 3 ammeter 2 C ammeter 2 ammeter 3 ammeter 1 D ammeter 3 ammeter 2 ammeter 1

1 marks

Answer: D

This question in 0625/11 May/June 2018

Q257 · A student sets up this circuit 0625/11 May/June 2018

33 A student sets up this circuit. What is the purpose of the circuit? A to allow a lamp to be made dimmer or brighter as required B to amplify the sound of a voice C to light a lamp in the dark D to sound a bell when the temperature rises

1 marks

Answer: D

This question in 0625/11 May/June 2018

Q258 · The diagram shows two voltmeters P and Q connected to a potential divider 0625/11 May/June 2018

34 The diagram shows two voltmeters P and Q connected to a potential divider. V voltmeter P X V voltmeter Q The sliding connection at point X is moved towards the top of the diagram. What happens to the reading on P and to the reading on Q? reading on P reading on Q A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: B

This question in 0625/11 May/June 2018

Q259 · A lamp is connected across one cell, then across two cells 0625/12 May/June 2018

29 A lamp is connected across one cell, then across two cells. The potential difference (p.d.) across the lamp and the current in it are measured in each case. The results are shown. number p.d. / V current / A of cells 1 2.8 0.25 2 5.4 0.40 What is the change in the resistance of the lamp when the number of cells is increased from one to two? A It decreases by 0.015 Ω. B It increases by 1.5 Ω. C It increases by 2.3 Ω. D It increases by 17 Ω.

1 marks

Answer: C

This question in 0625/12 May/June 2018

Q260 · Which electrical component does the symbol represent? 0625/12 May/June 2018

31 Which electrical component does the symbol represent? A a fuse B a relay coil C a thermistor D a variable resistor

1 marks

Answer: D

This question in 0625/12 May/June 2018

Q261 · A student sets up this circuit 0625/12 May/June 2018

32 A student sets up this circuit. What is the purpose of the circuit? A to allow a lamp to be made dimmer or brighter as required B to amplify the sound of a voice C to light a lamp in the dark D to sound a bell when the temperature rises

1 marks

Answer: D

This question in 0625/12 May/June 2018

Q262 · The diagram shows two voltmeters P and Q connected to a potential divider 0625/12 May/June 2018

33 The diagram shows two voltmeters P and Q connected to a potential divider. V voltmeter P X V voltmeter Q The sliding connection at point X is moved towards the top of the diagram. What happens to the reading on P and to the reading on Q? reading on P reading on Q A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: B

This question in 0625/12 May/June 2018

Q263 · A battery in an electric circuit is connected to a lamp 0625/13 May/June 2018

29 A battery in an electric circuit is connected to a lamp. Chemical energy in the battery is transferred to which other types of energy? A internal energy only B kinetic energy and sound energy C light energy and thermal energy D light energy only

1 marks

Answer: C

This question in 0625/13 May/June 2018

Q264 · Which component is represented by the symbol shown? 0625/13 May/June 2018

30 Which component is represented by the symbol shown? A fixed resistor B fuse C thermistor D variable resistor

1 marks

Answer: B

This question in 0625/13 May/June 2018

Q265 · A student sets up a circuit which she calls circuit 1 0625/13 May/June 2018

31 A student sets up a circuit which she calls circuit 1. She records the value of the current I1, and calculates the resistance R1 of the circuit. A A V V circuit 1 circuit 2 She then connects an identical resistor in parallel with the original resistor. She calls this circuit 2. She records current I2 and calculates the total resistance R2 of this circuit. Which row correctly compares the two currents and the two resistances in the circuits? I2 R2 A greater than I1 greater than R1 B greater than I1 less than R1 C less than I1 greater than R1 D less than I1 less than R1

1 marks

Answer: B

This question in 0625/13 May/June 2018

Q266 · A student sets up this circuit 0625/13 May/June 2018

32 A student sets up this circuit. What is the purpose of the circuit? A to allow a lamp to be made dimmer or brighter as required B to amplify the sound of a voice C to light a lamp in the dark D to sound a bell when the temperature rises

1 marks

Answer: D

This question in 0625/13 May/June 2018

Q267 · The diagram shows two voltmeters P and Q connected to a potential divider 0625/13 May/June 2018

33 The diagram shows two voltmeters P and Q connected to a potential divider. V voltmeter P X V voltmeter Q The sliding connection at point X is moved towards the top of the diagram. What happens to the reading on P and to the reading on Q? reading on P reading on Q A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: B

This question in 0625/13 May/June 2018

Q268 · The resistance of a component in a circuit is found using an ammeter and a voltmeter 0625/11 Oct/Nov 2018

30 The resistance of a component in a circuit is found using an ammeter and a voltmeter. How are the ammeter and the voltmeter connected? A the voltmeter and ammeter in parallel with the component B the voltmeter and ammeter in series with the component C the voltmeter in parallel with the component and the ammeter in series with the component D the voltmeter in series with the component and the ammeter in parallel with the component

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2018

Q269 · The diagram shows a circuit with a power supply and four components 0625/11 Oct/Nov 2018

31 The diagram shows a circuit with a power supply and four components. + – N What is component N? A fixed resistor B fuse C thermistor D variable resistor

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2018

Q270 · Two lamps are connected in parallel 0625/11 Oct/Nov 2018

32 Two lamps are connected in parallel. S1 S2 S3 Which switches must be closed so that both lamps light? A S1 and S2 only B S1 and S3 only C S2 and S3 only D S1, S2 and S3

1 marks

Answer: D

This question in 0625/11 Oct/Nov 2018

Q271 · The circuit diagram shows a variable potential divider 0625/11 Oct/Nov 2018

33 The circuit diagram shows a variable potential divider. P Q slider V The slider is moved from P towards Q. What happens to the reading on the voltmeter and to the brightness of the lamp? reading on brightness voltmeter of lamp A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: D

This question in 0625/11 Oct/Nov 2018

Q272 · A student investigates the resistance of a lamp 0625/12 Oct/Nov 2018

30 A student investigates the resistance of a lamp. Which row states how the meters must be connected? ammeter voltmeter A in parallel with the lamp in parallel with the lamp B in parallel with the lamp in series with the lamp C in series with the lamp in parallel with the lamp D in series with the lamp in series with the lamp

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2018

Q273 · A lamp is connected into a circuit so that the potential difference across it can be… 0625/12 Oct/Nov 2018

31 A lamp is connected into a circuit so that the potential difference across it can be varied from 0 to 12 V. Which circuit is suitable? A B C D 12 V 12 V 12 V 12 V

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2018

Q274 · The diagram shows a circuit 0625/12 Oct/Nov 2018

32 The diagram shows a circuit. A Which statement describes and explains how the circuit behaves? A The ammeter reading decreases when the light intensity decreases. B The ammeter reading decreases when the temperature decreases. C The ammeter reading increases when the light intensity decreases. D The ammeter reading increases when the temperature decreases.

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2018

Q275 · Which component uses a small direct current (d.c.) in one circuit to switch on a much… 0625/12 Oct/Nov 2018

33 Which component uses a small direct current (d.c.) in one circuit to switch on a much larger current in a second circuit? A potential divider B relay C transformer D variable resistor

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2018

Q276 · The diagram shows part of a circuit which contains an ammeter, a voltmeter and a resistor… 0625/13 Oct/Nov 2018

27 The diagram shows part of a circuit which contains an ammeter, a voltmeter and a resistor R. The ammeter and the voltmeter are in the correct positions to determine the resistance of R. meter P R meter Q Which expression gives the value of R? A reading of meter P ÷ reading of meter Q B (reading of meter P)2 × reading of meter Q C reading of meter Q × reading of meter P D reading of meter Q ÷ reading of meter P

1 marks

Answer: D

This question in 0625/13 Oct/Nov 2018

Q277 · The diagram shows a potential divider used to control the brightness of a lamp 0625/13 Oct/Nov 2018

31 The diagram shows a potential divider used to control the brightness of a lamp. What happens as the slider on the potential divider is moved to the right? A The potential difference across the lamp decreases and the lamp gets brighter. B The potential difference across the lamp decreases and the lamp gets dimmer. C The potential difference across the lamp increases and the lamp gets brighter. D The potential difference across the lamp increases and the lamp gets dimmer.

1 marks

Answer: C

This question in 0625/13 Oct/Nov 2018

Q278 · The diagram shows three identical resistors connected to a battery 0625/13 Oct/Nov 2018

32 The diagram shows three identical resistors connected to a battery. ammeter 1 A ammeter 3 A ammeter 2 A Which row gives the possible readings on the three ammeters? ammeter 1 / A ammeter 2 / A ammeter 3 / A A 1.5 3.0 4.5 B 3.0 1.5 4.5 C 3.0 4.5 1.5 D 4.5 1.5 3.0

1 marks

Answer: D

This question in 0625/13 Oct/Nov 2018

Q279 · A 4 Ω resistor and a 2 Ω resistor are connected to a 12 V battery in a circuit 0625/13 Oct/Nov 2018

33 A 4 Ω resistor and a 2 Ω resistor are connected to a 12 V battery in a circuit. 4 Ω 12 V 2 Ω What is the current in the 2 Ω resistor? A 0.5 A B 2.0 A C 3.0 A D 6.0 A

1 marks

Answer: B

This question in 0625/13 Oct/Nov 2018

Q280 · Which statement about a voltmeter is correct? 0625/12 Feb/March 2019

28 Which statement about a voltmeter is correct? A A voltmeter measures the current in a component and is connected in series with the component. B A voltmeter measures the current in a component and is connected in parallel with the component. C A voltmeter measures the potential difference (p.d.) across a component and is connected in series with the component. D A voltmeter measures the potential difference (p.d.) across a component and is connected in parallel with the component.

1 marks

Answer: D

This question in 0625/12 Feb/March 2019

Q281 · Four wires are made from the same metal 0625/12 Feb/March 2019

29 Four wires are made from the same metal. Which wire has the lowest resistance? length of diameter of wire / cm wire / mm A 20 0.20 B 20 0.40 C 40 0.20 D 40 0.40

1 marks

Answer: B

This question in 0625/12 Feb/March 2019

Q282 · A student sets up a circuit containing a battery of two cells and three lamps, as shown 0625/12 Feb/March 2019

30 A student sets up a circuit containing a battery of two cells and three lamps, as shown. – + – + What is the circuit diagram for this arrangement? A B C D

1 marks

Answer: A

This question in 0625/12 Feb/March 2019

Q283 · The diagrams show different resistor arrangements 0625/12 Feb/March 2019

31 The diagrams show different resistor arrangements. Which arrangement has the smallest combined resistance? A B C D 10 Ω 10 Ω 10 Ω 10 Ω 10 Ω 5 Ω 5 Ω 10 Ω

1 marks

Answer: A

This question in 0625/12 Feb/March 2019

Q284 · The diagram shows a potential divider circuit 0625/12 Feb/March 2019

32 The diagram shows a potential divider circuit. V P V Q The resistance of the variable resistor is increased. Which row shows what happens to the reading on voltmeter P and on voltmeter Q? reading on voltmeter P reading on voltmeter Q A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: C

This question in 0625/12 Feb/March 2019

Q285 · The diagram shows a transformer connected to a 240 V a.c 0625/12 Feb/March 2019

35 The diagram shows a transformer connected to a 240 V a.c. supply. soft-iron core primary coil secondary coil 60 turns 30 turns 240 V a.c. What is the potential difference across the secondary coil of the transformer? A 30 V B 120 V C 240 V D 480 V

1 marks

Answer: B

This question in 0625/12 Feb/March 2019

Q286 · A voltmeter and an ammeter are used to measure the resistance of a resistor 0625/11 May/June 2019

31 A voltmeter and an ammeter are used to measure the resistance of a resistor. Which diagram shows the voltmeter and the ammeter correctly connected? A B C D A V A V A V A V

1 marks

Answer: B

This question in 0625/11 May/June 2019

Q287 · A student sets up four circuits 0625/11 May/June 2019

32 A student sets up four circuits. In which circuit is there a heater in series with a fuse? A B C D

1 marks

Answer: C

This question in 0625/11 May/June 2019

Q288 · The diagram shows a circuit containing a d.c 0625/11 May/June 2019

33 The diagram shows a circuit containing a d.c. power supply, a motor and a variable resistor. Three ammeters X, Y and Z show the current in different parts of the circuit. + – X A A Z A M Y The reading on X is 4.0 A. Which statement is correct? A The readings on Y and Z are both less than 4.0 A. B The readings on Y and Z are both equal to 4.0 A. C The readings on Y and Z are both greater than 4.0 A. D The reading on Z is zero.

1 marks

Answer: B

This question in 0625/11 May/June 2019

Q289 · A lamp is to be connected in a circuit so that the potential difference (p.d.) across it… 0625/11 May/June 2019

34 A lamp is to be connected in a circuit so that the potential difference (p.d.) across it can be varied from 0 to 6 V. Which circuit would be most suitable? A B 6 V 6 V C D 6 V 6 V

1 marks

Answer: B

This question in 0625/11 May/June 2019

Q290 · An ammeter and a voltmeter are used to determine the resistance of a resistor 0625/12 May/June 2019

31 An ammeter and a voltmeter are used to determine the resistance of a resistor. Which circuit diagram shows the ammeter and the voltmeter correctly connected? A B C D V A V V A R R R A R A V

1 marks

Answer: B

This question in 0625/12 May/June 2019

Q291 · The diagram shows a circuit 0625/12 May/June 2019

32 The diagram shows a circuit. What is connected in parallel with the thermistor? A heater B lamp C light-dependent resistor D variable resistor

1 marks

Answer: A

This question in 0625/12 May/June 2019

Q292 · The circuit shows a relay being used to operate a mains lamp 0625/12 May/June 2019

33 The circuit shows a relay being used to operate a mains lamp. Two ammeters are labelled P and Q. P Q A A mains lamp The variable resistor is used to vary the current in the relay coil. The mains lamp switches on when there is a large enough current in the relay coil. The graph shows how the reading on ammeter Q changes as the reading on ammeter P increases. 0.20 reading on 0.15 ammeter Q / A 0.10 0.05 0.00 0.00 0.10 0.20 0.30 0.40 0.50 0.60 reading on ammeter P / A What is the minimum current needed in the relay coil to switch on the mains lamp? A 0.15 A B 0.20 A C 0.35 A D 0.60 A

1 marks

Answer: B

This question in 0625/12 May/June 2019

Q293 · A lamp is to be connected in a circuit so that the potential difference (p.d.) across it… 0625/12 May/June 2019

34 A lamp is to be connected in a circuit so that the potential difference (p.d.) across it can be varied from 0 to 6 V. Which circuit would be most suitable? A B 6 V 6 V C D 6 V 6 V

1 marks

Answer: B

This question in 0625/12 May/June 2019

Q294 · A battery stores chemical potential energy 0625/13 May/June 2019

31 A battery stores chemical potential energy. The battery is connected to a resistor. As the battery runs down, what happens to its chemical energy? The energy is transferred by and ends up as A electrical working internal energy in the resistor B electrical working potential energy in the resistor C mechanical working internal energy in the resistor D mechanical working potential energy in the resistor

1 marks

Answer: A

This question in 0625/13 May/June 2019

Q295 · The diagram shows a circuit including a lamp, an electric bell and three switches S1, S2… 0625/13 May/June 2019

32 The diagram shows a circuit including a lamp, an electric bell and three switches S1, S2 and S3. The lamp and bell are not faulty. S1 S2 S3 The bell is ringing but the lamp is not lit. Which switches are closed? A S1 only B S1 and S2 only C S1 and S3 only D S1, S2 and S3

1 marks

Answer: C

This question in 0625/13 May/June 2019

Q296 · A student is designing a lighting circuit for a dolls’ house 0625/13 May/June 2019

33 A student is designing a lighting circuit for a dolls’ house. He sets up two different circuits. Each circuit contains a 12 V power supply and three identical lamps. Each lamp is designed to operate at normal brightness when connected individually to a 12 V supply. 12 V power 12 V power supply supply 12 12 circuit 1 circuit 2 Which statement is correct? A In circuit 1, each of the lamps is at normal brightness. B In circuit 1, if one lamp fails, the other lamps remain lit. C In circuit 2, if one lamp fails, the other lamps remain lit. D In circuit 2, the current from the power supply is less than in circuit 1.

1 marks

Answer: C

This question in 0625/13 May/June 2019

Q297 · A lamp is to be connected in a circuit so that the potential difference (p.d.) across it… 0625/13 May/June 2019

34 A lamp is to be connected in a circuit so that the potential difference (p.d.) across it can be varied from 0 to 6 V. Which circuit would be most suitable? A B 6 V 6 V C D 6 V 6 V

1 marks

Answer: B

This question in 0625/13 May/June 2019

Q298 · A simple wiring diagram for an electric cooker is shown 0625/13 May/June 2019

35 A simple wiring diagram for an electric cooker is shown. electric cooker metal casing live neutral earth connection to casing Why is there a wire connecting the metal case of the cooker to earth? A It improves the efficiency of the cooker. B It prevents the metal case from becoming too hot when the cooker is left on. C It reduces the risk of an electric shock if the live wire touches the metal case. D The electric cooker will not switch on without it.

1 marks

Answer: C

This question in 0625/13 May/June 2019

Q299 · Which device relies upon the magnetic effect of an electric current? 0625/13 May/June 2019

37 Which device relies upon the magnetic effect of an electric current? A fuse B relay C thermistor D variable resistor

1 marks

Answer: B

This question in 0625/13 May/June 2019

Q300 · The circuit shows two lamps connected to a d.c 0625/11 Oct/Nov 2019

31 The circuit shows two lamps connected to a d.c. supply. The same lamps and power supply are arranged in different ways, as shown. P Q R In which circuits will the lamps be the same brightness as in the original circuit? A Q only B P and Q only C P and R only D P, Q and R

1 marks

Answer: D

This question in 0625/11 Oct/Nov 2019

Q301 · Identical resistors are connected together to form arrangements X, Y and Z 0625/11 Oct/Nov 2019

32 Identical resistors are connected together to form arrangements X, Y and Z. X Y Z What is the correct order of the resistances of the arrangements from the largest to the smallest? A X → Y → Z B Y → X → Z C Z → X → Y D Z → Y → X

1 marks

Answer: D

This question in 0625/11 Oct/Nov 2019

Q302 · A student uses 100 cm of resistance wire XY in a circuit to make a potential divider 0625/11 Oct/Nov 2019

33 A student uses 100 cm of resistance wire XY in a circuit to make a potential divider. X sliding contact l V Y He changes the length of wire l by moving the sliding contact along the resistance wire. Which graph shows how the voltmeter reading changes as the length of wire l is increased from zero to 100 cm? A B voltmeter voltmeter reading / V reading / V 0 0 0 100 0 100 l / cm l / cm C D voltmeter voltmeter reading / V reading / V 0 0 0 100 0 100 l / cm l / cm

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2019

Q303 · Where must a fuse be connected in a mains electric circuit? 0625/11 Oct/Nov 2019

34 Where must a fuse be connected in a mains electric circuit? A the earth wire only B the live wire only C the neutral wire only D the live wire and the earth wire

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2019

Q304 · A student determines the resistance of an electric lamp 0625/12 Oct/Nov 2019

31 A student determines the resistance of an electric lamp. He measures the current in the lamp and the potential difference (p.d.) across it. Which circuit did he use? A B A A V V C D V V A A

1 marks

Answer: D

This question in 0625/12 Oct/Nov 2019

Q305 · Identical resistors are connected together to form arrangements X, Y and Z 0625/12 Oct/Nov 2019

32 Identical resistors are connected together to form arrangements X, Y and Z. X Y Z What is the correct order of the resistances of the arrangements from the largest to the smallest? A X → Y → Z B Y → X → Z C Z → X → Y D Z → Y → X

1 marks

Answer: D

This question in 0625/12 Oct/Nov 2019

Q306 · The circuit shows a wire WX connected to a cell 0625/12 Oct/Nov 2019

33 The circuit shows a wire WX connected to a cell. 100 cm W X V The potential difference (p.d.) between W and X is 1.5 V. What is the reading on the voltmeter? A 0.4 V B 0.6 V C 0.9 V D 4.0 V

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2019

Q307 · A resistor is connected to a battery 0625/13 Oct/Nov 2019

30 A resistor is connected to a battery. There is a current in the resistor. What is the main energy change? A Chemical energy is converted into thermal energy. B Chemical energy is converted into gravitational potential energy. C Nuclear energy is converted into thermal energy. D Nuclear energy is converted into gravitational potential energy.

1 marks

Answer: A

This question in 0625/13 Oct/Nov 2019

Q308 · Lamps X and Y are designed to operate at normal brightness when each are connected to a… 0625/13 Oct/Nov 2019

31 Lamps X and Y are designed to operate at normal brightness when each are connected to a 3.0 V supply. Lamp Z is designed to operate at normal brightness when connected to a 6.0 V supply. In which circuit do all three lamps operate at normal brightness? A B C D 6 V 6 V 3 V 6 V X Y X X X Y Z Y Y Z Z Z

1 marks

Answer: B

This question in 0625/13 Oct/Nov 2019

Q309 · Identical resistors are connected together to form arrangements X, Y and Z 0625/13 Oct/Nov 2019

32 Identical resistors are connected together to form arrangements X, Y and Z. X Y Z What is the correct order of the resistances of the arrangements from the largest to the smallest? A X → Y → Z B Y → X → Z C Z → X → Y D Z → Y → X

1 marks

Answer: D

This question in 0625/13 Oct/Nov 2019

Q310 · Which circuit shows a variable resistor used to control the brightness of a lamp? 0625/13 Oct/Nov 2019

33 Which circuit shows a variable resistor used to control the brightness of a lamp? A B C D

1 marks

Answer: B

This question in 0625/13 Oct/Nov 2019

Q311 · Where must a fuse be connected in a mains electric circuit? 0625/13 Oct/Nov 2019

34 Where must a fuse be connected in a mains electric circuit? A the earth wire only B the live wire only C the neutral wire only D the live wire and the earth wire

1 marks

Answer: B

This question in 0625/13 Oct/Nov 2019

Q312 · A step-up transformer produces a 60 V a.c 0625/13 Oct/Nov 2019

35 A step-up transformer produces a 60 V a.c. output from a 12 V a.c. input. There are 50 turns on the secondary coil. How many turns are there on the primary coil? A 5 B 10 C 50 D 250

1 marks

Answer: B

This question in 0625/13 Oct/Nov 2019

Q313 · A student uses the circuit shown to determine the resistance of two identical resistors 0625/11 May/June 2020

31 A student uses the circuit shown to determine the resistance of two identical resistors. A V The voltmeter reading is 2.2 V and the ammeter reading is 0.25 A. What is the resistance of each resistor? A 0.275 Ω B 0.55 Ω C 4.4 Ω D 8.8 Ω

1 marks

Answer: C

This question in 0625/11 May/June 2020

Q314 · In the circuit shown, A1 and A2 are ammeters 0625/11 May/June 2020

32 In the circuit shown, A1 and A2 are ammeters. A1 A2 S Switch S is closed. Which row is correct? the resistance of reading of A1 reading of A2 the whole circuit A decreases stays the same increases B decreases increases increases C increases stays the same stays the same D increases decreases decreases

1 marks

Answer: B

This question in 0625/11 May/June 2020

Q315 · What happens to the resistance of an LDR when the brightness of light falling on it… 0625/11 May/June 2020

33 What happens to the resistance of an LDR when the brightness of light falling on it increases? A Its resistance decreases. B Its resistance increases. C Its resistance increases then decreases. D Its resistance stays the same.

1 marks

Answer: A

This question in 0625/11 May/June 2020

Q316 · A student constructs four circuits, each containing a fuse 0625/11 May/June 2020

34 A student constructs four circuits, each containing a fuse. The fuse blows in one circuit and both lamps in the circuit go out. In which circuit does the fuse blow and both lamps go out? A B C D

1 marks

Answer: D

This question in 0625/11 May/June 2020

Q317 · The diagram shows a circuit 0625/12 May/June 2020

30 The diagram shows a circuit. The wire between P and Q can be removed and replaced by a circuit component. P Q R S T Where should a voltmeter be connected to measure the potential difference (p.d.) across the lamp? A between P and Q in place of the wire B in parallel with R and S C in parallel with R and T D in parallel with S and T

1 marks

Answer: B

This question in 0625/12 May/June 2020

Q318 · A student uses the circuit shown to determine the resistance of two identical resistors 0625/12 May/June 2020

31 A student uses the circuit shown to determine the resistance of two identical resistors. A V The voltmeter reading is 2.2 V and the ammeter reading is 0.25 A. What is the resistance of each resistor? A 0.275 Ω B 0.55 Ω C 4.4 Ω D 8.8 Ω

1 marks

Answer: C

This question in 0625/12 May/June 2020

Q319 · The circuit shown contains five lamps J, K, L, M and N 0625/12 May/June 2020

32 The circuit shown contains five lamps J, K, L, M and N. All the lamps are glowing. lamp L lamp K lamp J lamp N lamp M One lamp is removed and two other lamps go out. Which lamp is removed? A lamp J B lamp K C lamp L D lamp M

1 marks

Answer: A

This question in 0625/12 May/June 2020

Q320 · The diagram shows a control circuit 0625/12 May/June 2020

33 The diagram shows a control circuit. The lamp is lit. The temperature of the surroundings increases. What will happen to the brightness of the lamp? A It will be brighter. B It will be less bright. C It will not change. D It will become brighter and then less bright.

1 marks

Answer: A

This question in 0625/12 May/June 2020

Q321 · A student constructs four circuits, each containing a fuse 0625/12 May/June 2020

34 A student constructs four circuits, each containing a fuse. The fuse blows in one circuit and both lamps in the circuit go out. In which circuit does the fuse blow and both lamps go out? A B C D

1 marks

Answer: D

This question in 0625/12 May/June 2020

Q322 · A student uses the circuit shown to determine the resistance of two identical resistors 0625/13 May/June 2020

31 A student uses the circuit shown to determine the resistance of two identical resistors. A V The voltmeter reading is 2.2 V and the ammeter reading is 0.25 A. What is the resistance of each resistor? A 0.275 Ω B 0.55 Ω C 4.4 Ω D 8.8 Ω

1 marks

Answer: C

This question in 0625/13 May/June 2020

Q323 · The diagram shows part of a circuit containing three identical lamps 0625/13 May/June 2020

32 The diagram shows part of a circuit containing three identical lamps. X W Z Y At which two points do the currents have the same value? A W and X B W and Z C X and Y D Y and Z

1 marks

Answer: B

This question in 0625/13 May/June 2020

Q324 · Which circuit contains a thermistor and a heater? 0625/13 May/June 2020

33 Which circuit contains a thermistor and a heater? A B C D

1 marks

Answer: D

This question in 0625/13 May/June 2020

Q325 · A student constructs four circuits, each containing a fuse 0625/13 May/June 2020

34 A student constructs four circuits, each containing a fuse. The fuse blows in one circuit and both lamps in the circuit go out. In which circuit does the fuse blow and both lamps go out? A B C D

1 marks

Answer: D

This question in 0625/13 May/June 2020

Q326 · A student uses four ammeters P, Q, R and S to measure the current in different parts of… 0625/11 Oct/Nov 2020

31 A student uses four ammeters P, Q, R and S to measure the current in different parts of the circuit shown. P Q A A R A S A Which two ammeters read the largest current? A P and Q B P and R C R and Q D R and S

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2020

Q327 · A circuit X is set up with two identical lamps 0625/11 Oct/Nov 2020

32 A circuit X is set up with two identical lamps. Circuit Y is then set up, changing the positions of the meters. X Y A A V V On which meters do the readings change? A both the ammeter and the voltmeter B the ammeter only C the voltmeter only D neither the ammeter nor the voltmeter

1 marks

Answer: D

This question in 0625/11 Oct/Nov 2020

Q328 · An electrical appliance is powered from a mains supply 0625/11 Oct/Nov 2020

33 An electrical appliance is powered from a mains supply. The appliance normally uses a current of 3 A, but the current briefly rises to 4 A at the instant the appliance is switched on. The cable to the appliance is designed for currents up to 6 A. A fuse is used to protect the circuit. What should be the rating of the fuse? A 1 A B 3 A C 5 A D 13 A

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2020

Q329 · A transformer is needed to convert a supply of 240 V a.c 0625/11 Oct/Nov 2020

35 A transformer is needed to convert a supply of 240 V a.c. into 4800 V a.c.. NP NS 240 V a.c. 4800 V a.c. Which pair of coils would be suitable for this transformer? number of turns number of turns on primary coil NP on secondary coil NS A 50 1 000 B 240 48 000 C 480 24 D 2000 100

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2020

Q330 · There is a current in a variable resistor when a potential difference (p.d.) is applied… 0625/12 Oct/Nov 2020

30 There is a current in a variable resistor when a potential difference (p.d.) is applied across it. In which situation is the current increased? A Decrease the p.d. and keep the resistance the same. B Decrease the p.d. and increase the resistance. C Keep the p.d. the same and decrease the resistance. D Keep the p.d. the same and increase the resistance.

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2020

Q331 · The circuit shown includes a battery, three lamps X, Y and Z and three switches S1, S2… 0625/12 Oct/Nov 2020

31 The circuit shown includes a battery, three lamps X, Y and Z and three switches S1, S2 and S3. lamp X S1 S2 lamp Y S3 lamp Z Lamp X is off but lamps Y and Z are lit. Which switches are closed? A S1 and S2 only B S1 and S3 only C S2 and S3 only D S1, S2 and S3

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2020

Q332 · A student uses four ammeters P, Q, R and S to measure the current in different parts of… 0625/12 Oct/Nov 2020

32 A student uses four ammeters P, Q, R and S to measure the current in different parts of the circuit shown. P Q A A R A S A Which two ammeters read the largest current? A P and Q B P and R C R and Q D R and S

1 marks

Answer: A

This question in 0625/12 Oct/Nov 2020

Q333 · An electrical appliance is powered from a mains supply 0625/12 Oct/Nov 2020

33 An electrical appliance is powered from a mains supply. The appliance normally uses a current of 3 A, but the current briefly rises to 4 A at the instant the appliance is switched on. The cable to the appliance is designed for currents up to 6 A. A fuse is used to protect the circuit. What should be the rating of the fuse? A 1 A B 3 A C 5 A D 13 A

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2020

Q334 · A transformer is needed to convert a supply of 240 V a.c 0625/12 Oct/Nov 2020

35 A transformer is needed to convert a supply of 240 V a.c. into 4800 V a.c.. NP NS 240 V a.c. 4800 V a.c. Which pair of coils would be suitable for this transformer? number of turns number of turns on primary coil NP on secondary coil NS A 50 1 000 B 240 48 000 C 480 24 D 2000 100

1 marks

Answer: A

This question in 0625/12 Oct/Nov 2020

Q335 · Each diagram shows part of a circuit 0625/13 Oct/Nov 2020

30 Each diagram shows part of a circuit. The circle represents an instrument used to measure the potential difference (p.d.) across the resistor. diagram 1 diagram 2 Which row is correct? diagram which shows the the unit of p.d. meter correctly connected A amperes diagram 1 B amperes diagram 2 C volts diagram 1 D volts diagram 2

1 marks

Answer: D

This question in 0625/13 Oct/Nov 2020

Q336 · A student uses four ammeters P, Q, R and S to measure the current in different parts of… 0625/13 Oct/Nov 2020

31 A student uses four ammeters P, Q, R and S to measure the current in different parts of the circuit shown. P Q A A R A S A Which two ammeters read the largest current? A P and Q B P and R C R and Q D R and S

1 marks

Answer: A

This question in 0625/13 Oct/Nov 2020

Q337 · Three statements about a relay are given 0625/13 Oct/Nov 2020

32 Three statements about a relay are given. 1 A relay has a coil that becomes a temporary magnet when in operation. 2 A large current in a relay coil is used to switch off a smaller current. 3 A small current in a relay coil is used to switch on a larger current. Which statements are correct? A 1 and 2 only B 2 and 3 only C 1 and 3 only D 1, 2 and 3

1 marks

Answer: C

This question in 0625/13 Oct/Nov 2020

Q338 · An electrical appliance is powered from a mains supply 0625/13 Oct/Nov 2020

33 An electrical appliance is powered from a mains supply. The appliance normally uses a current of 3 A, but the current briefly rises to 4 A at the instant the appliance is switched on. The cable to the appliance is designed for currents up to 6 A. A fuse is used to protect the circuit. What should be the rating of the fuse? A 1 A B 3 A C 5 A D 13 A

1 marks

Answer: C

This question in 0625/13 Oct/Nov 2020

Q339 · A length of metal wire is used as a resistor in a circuit 0625/12 Feb/March 2021

31 A length of metal wire is used as a resistor in a circuit. Which change to the wire results in an increase in current in the circuit? A connecting a second identical length of wire in parallel with the original wire B connecting a second identical length of wire in series with the original wire C decreasing the thickness of the wire D increasing the length of the wire

1 marks

Answer: A

This question in 0625/12 Feb/March 2021

Q340 · The diagram shows a circuit containing a power supply, a lamp and a motor 0625/12 Feb/March 2021

32 The diagram shows a circuit containing a power supply, a lamp and a motor. Three ammeters measure the current at different points in the circuit. The readings on the ammeters are I1, I2 and I3. ammeter reading I1 A ammeter reading I2 A ammeter reading I3 M A Which statement about the ammeter readings is correct? A All three readings are the same. B I1 is greater than I2 and is greater than I3. C I2 is greater than I1 and is greater than I3. D I3 is greater than I1 and is greater than I2.

1 marks

Answer: B

This question in 0625/12 Feb/March 2021

Q341 · A student designs a circuit to use as a dimmer switch for a lamp 0625/12 Feb/March 2021

33 A student designs a circuit to use as a dimmer switch for a lamp. X Y What happens to the brightness of the lamp and the potential difference (p.d.) across the lamp, when the slider is moved from X to Y? brightness of lamp p.d. across the lamp A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: A

This question in 0625/12 Feb/March 2021

Q342 · Which electrical component is connected in series with an electric circuit to protect it… 0625/12 Feb/March 2021

34 Which electrical component is connected in series with an electric circuit to protect it from damage by a very large current? A earth wire B fuse C relay D thermistor

1 marks

Answer: B

This question in 0625/12 Feb/March 2021

Q343 · The diagram shows an electromagnet near a coil of wire connected to a voltmeter 0625/12 Feb/March 2021

35 The diagram shows an electromagnet near a coil of wire connected to a voltmeter. The reading on the voltmeter is zero. electromagnet coil soft iron switch V + – The switch is closed. The electromagnet magnetises quickly. What happens to the reading on the voltmeter? A It keeps increasing. B It quickly increases and stays at maximum. C It quickly increases and then decreases. D It stays on zero.

1 marks

Answer: C

This question in 0625/12 Feb/March 2021

Q344 · A student connects a circuit with a resistor X 0625/12 May/June 2021

30 A student connects a circuit with a resistor X. The reading on the ammeter is 2.0 A. The reading on the voltmeter is 6.0 V. A X V She needs to produce a circuit with a total resistance of 10 . Which resistor should she add in series to the circuit? A 2  B 3  C 7  D 10 

1 marks

Answer: C

This question in 0625/12 May/June 2021

Q345 · The diagram shows a circuit containing a battery, an ammeter, three switches, S1, S2 and… 0625/12 May/June 2021

31 The diagram shows a circuit containing a battery, an ammeter, three switches, S1, S2 and S3, and three identical lamps. A S1 S2 S3 With only switch S1 closed, the reading on the ammeter is 0.04 A. Which row states the incorrect ammeter reading for the switch conditions given? ammeter switch S1 switch S2 switch S3 reading / A A open open open 0.00 B open closed open 0.04 C open open closed 0.08 D closed closed closed 0.12

1 marks

Answer: C

This question in 0625/12 May/June 2021

Q346 · Two 10  resistors are connected in series and then in parallel 0625/12 May/June 2021

32 Two 10  resistors are connected in series and then in parallel. What is the combined resistance in each case? resistance in resistance in series /  parallel /  A 10 5 B 10 10 C 20 5 D 20 10

1 marks

Answer: C

This question in 0625/12 May/June 2021

Q347 · The diagram shows an electric circuit 0625/11 Oct/Nov 2021

9 The diagram shows an electric circuit. When the switch is closed, the lamp is lit. Which row states the type of energy stored in the cell and how this energy is usefully transferred to the lamp? type of energy how this energy is usefully stored in the cell transferred to the lamp A chemical by electric current B chemical by light C electrical by electric current D electrical by light

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2021

Q348 · In which circuit is the ammeter measuring the flow of charge through the lamp? 0625/11 Oct/Nov 2021

26 In which circuit is the ammeter measuring the flow of charge through the lamp? A B C D A A A A

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2021

Q349 · In circuit 1, a negative charge flows in a clockwise direction 0625/11 Oct/Nov 2021

27 In circuit 1, a negative charge flows in a clockwise direction. The bulb is bright. In circuit 2, the battery is reversed as shown. The bulb is equally bright. circuit 1 circuit 2 Which charge flows in circuit 2 and in which direction? charge direction A negative anticlockwise B negative clockwise C positive anticlockwise D positive clockwise

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2021

Q350 · The diagram shows a circuit containing two resistors of resistance 1.0  and 2.0  0625/11 Oct/Nov 2021

28 The diagram shows a circuit containing two resistors of resistance 1.0  and 2.0 . A voltmeter is connected across the 1.0  resistor by connecting P to X. The reading on the voltmeter is 6.0 V. 1.0 Ω X 2.0 Ω Y P V P is moved to point Y in the circuit. What is the new reading on the voltmeter? A 3.0 V B 6.0 V C 12 V D 18 V

1 marks

Answer: D

This question in 0625/11 Oct/Nov 2021

Q351 · Which circuit contains a fuse? 0625/11 Oct/Nov 2021

30 Which circuit contains a fuse? A B A V C D A

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2021

Q352 · The diagram shows an electric circuit 0625/11 Oct/Nov 2021

31 The diagram shows an electric circuit. Which row correctly shows the numbers of different components in the circuit? cells lamps switches A 1 1 4 B 1 4 1 C 3 1 4 D 3 4 1

1 marks

Answer: D

This question in 0625/11 Oct/Nov 2021

Q353 · Two resistors, with resistances R1 and R2, are connected in parallel 0625/11 Oct/Nov 2021

32 Two resistors, with resistances R1 and R2, are connected in parallel. The resistance R1 is greater than the resistance R2. R1 R2 What is the resistance of the parallel combination? A less than either R1 or R2 B equal to R1 C equal to R2 D the average of R1 and R2

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2021

Q354 · The current in a small electric heater is 4.0 A 0625/11 Oct/Nov 2021

36 The current in a small electric heater is 4.0 A. The cable connected to the heater is able to carry currents up to 10 A. Fuses rated 1 A, 3 A, 5 A and 13 A are available. Which fuse should be used? A 1 A B 3 A C 5 A D 13 A

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2021

Q355 · Which circuit symbol represents a component used to measure electric current? 0625/12 Oct/Nov 2021

26 Which circuit symbol represents a component used to measure electric current? A B C D A G V

1 marks

Answer: A

This question in 0625/12 Oct/Nov 2021

Q356 · Four wires made of the same metal have different lengths and different diameters 0625/12 Oct/Nov 2021

27 Four wires made of the same metal have different lengths and different diameters. Which wire has the lowest resistance? length diameter A long large B long small C short large D short small

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2021

Q357 · The diagram shows a circuit containing two resistors of resistance 1.0  and 2.0  0625/12 Oct/Nov 2021

28 The diagram shows a circuit containing two resistors of resistance 1.0  and 2.0 . A voltmeter is connected across the 1.0  resistor by connecting P to X. The reading on the voltmeter is 6.0 V. 1.0 Ω X 2.0 Ω Y P V P is moved to point Y in the circuit. What is the new reading on the voltmeter? A 3.0 V B 6.0 V C 12 V D 18 V

1 marks

Answer: D

This question in 0625/12 Oct/Nov 2021

Q358 · Which device is used to measure the flow of charge in an electrical circuit? 0625/12 Oct/Nov 2021

29 Which device is used to measure the flow of charge in an electrical circuit? A ammeter B voltmeter C battery D newton meter

1 marks

Answer: A

This question in 0625/12 Oct/Nov 2021

Q359 · Which circuit contains a fuse? 0625/12 Oct/Nov 2021

30 Which circuit contains a fuse? A B A V C D A

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2021

Q360 · A student designs a circuit to turn on a fan when the temperature increases 0625/12 Oct/Nov 2021

31 A student designs a circuit to turn on a fan when the temperature increases. Which component does the student need to use in her circuit? A B C D

1 marks

Answer: D

This question in 0625/12 Oct/Nov 2021

Q361 · Two resistors, with resistances R1 and R2, are connected in parallel 0625/12 Oct/Nov 2021

32 Two resistors, with resistances R1 and R2, are connected in parallel. The resistance R1 is greater than the resistance R2. R1 R2 What is the resistance of the parallel combination? A less than either R1 or R2 B equal to R1 C equal to R2 D the average of R1 and R2

1 marks

Answer: A

This question in 0625/12 Oct/Nov 2021

Q362 · The diagram shows a motor connected to an a.c 0625/12 Oct/Nov 2021

33 The diagram shows a motor connected to an a.c. supply. The circuit is incomplete. X Y M Which device needs to be connected between point X and point Y to prevent the wires from overheating if a fault in the motor causes the current to get too high? A an ammeter B a fuse C a transformer D a length of thick copper wire

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2021

Q363 · An electric drill, operating from a supply voltage of 240 V, uses a current of 3.5 A 0625/12 Oct/Nov 2021

36 An electric drill, operating from a supply voltage of 240 V, uses a current of 3.5 A. Which rating of fuse should be used to protect the drill’s cable? A 250 V B 200 V C 5 A D 3 A

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2021

Q364 · The diagram shows a circuit containing two resistors of resistance 1.0  and 2.0  0625/13 Oct/Nov 2021

28 The diagram shows a circuit containing two resistors of resistance 1.0  and 2.0 . A voltmeter is connected across the 1.0  resistor by connecting P to X. The reading on the voltmeter is 6.0 V. 1.0 Ω X 2.0 Ω Y P V P is moved to point Y in the circuit. What is the new reading on the voltmeter? A 3.0 V B 6.0 V C 12 V D 18 V

1 marks

Answer: D

This question in 0625/13 Oct/Nov 2021

Q365 · Which circuit contains a fuse? 0625/13 Oct/Nov 2021

30 Which circuit contains a fuse? A B A V C D A

1 marks

Answer: C

This question in 0625/13 Oct/Nov 2021

Q366 · A student sets up the circuit shown, with a gap XY 0625/13 Oct/Nov 2021

31 A student sets up the circuit shown, with a gap XY. X Y The student wishes to connect a component between X and Y to enable her to vary the brightness of the lamp. Which component should be used? A B C D

1 marks

Answer: B

This question in 0625/13 Oct/Nov 2021

Q367 · Two resistors, with resistances R1 and R2, are connected in parallel 0625/13 Oct/Nov 2021

32 Two resistors, with resistances R1 and R2, are connected in parallel. The resistance R1 is greater than the resistance R2. R1 R2 What is the resistance of the parallel combination? A less than either R1 or R2 B equal to R1 C equal to R2 D the average of R1 and R2

1 marks

Answer: A

This question in 0625/13 Oct/Nov 2021

Q368 · Circuit breakers and fuses are devices used to protect a circuit from overloading 0625/13 Oct/Nov 2021

33 Circuit breakers and fuses are devices used to protect a circuit from overloading. Which statement correctly describes the difference between a circuit breaker and a fuse? A Circuit breakers can be reset if they operate but fuses need to be replaced. B Circuit breakers need to be replaced if they operate but fuses can be reset. C Circuit breakers can be used in an a.c. circuit but fuses cannot. D Circuit breakers cannot be used in an a.c. circuit but fuses can.

1 marks

Answer: A

This question in 0625/13 Oct/Nov 2021

Q369 · Which labelled component in the circuit shown controls the brightness of lamp X? 0625/12 Feb/March 2022

30 Which labelled component in the circuit shown controls the brightness of lamp X? A V X B C D

1 marks

Answer: B

This question in 0625/12 Feb/March 2022

Q370 · A circuit includes a battery, two identical resistors and five ammeters, P, Q, R, S and T 0625/12 Feb/March 2022

31 A circuit includes a battery, two identical resistors and five ammeters, P, Q, R, S and T. P Q A A R A S T A A Which statement about the readings on the ammeters is not correct? A P has a greater reading than Q. B P has a greater reading than R. C P has a greater reading than S. D P has a greater reading than T.

1 marks

Answer: A

This question in 0625/12 Feb/March 2022

Q371 · An electrician sets up a potential divider circuit in a fridge so that when the fridge… 0625/12 Feb/March 2022

32 An electrician sets up a potential divider circuit in a fridge so that when the fridge door is open and light from the room enters the fridge, a warning light turns on. Which component does the electrician need for the potential divider in addition to a variable resistor? A light-dependent resistor B relay C thermistor D motor

1 marks

Answer: A

This question in 0625/12 Feb/March 2022

Q372 · A simple wiring diagram for an electric cooker is shown 0625/12 Feb/March 2022

33 A simple wiring diagram for an electric cooker is shown. electric cooker metal case live neutral earth connection to casing Why is there a wire connecting the metal case of the cooker to earth? A It improves the efficiency of the cooker. B It prevents the metal case from becoming too hot when the cooker is left on. C It reduces the risk of an electric shock if the live wire touches the metal case. D The electric cooker will not switch on without it.

1 marks

Answer: C

This question in 0625/12 Feb/March 2022

Q373 · Three statements about a.c 0625/12 Feb/March 2022

34 Three statements about a.c. and d.c. currents are given. 1 A d.c. current is in one direction only whilst an a.c. current repeatedly changes direction. 2 d.c. is the abbreviation for direct current and a.c. is the abbreviation for amplitude current. 3 An a.c. current is in one direction only whilst a d.c. current repeatedly changes direction. Which statements are correct? A 1 and 2 B 1 only C 2 and 3 D 3 only

1 marks

Answer: B

This question in 0625/12 Feb/March 2022

Q374 · Which arrangement can be used to step up a voltage? 0625/12 Feb/March 2022

36 Which arrangement can be used to step up a voltage? A B iron core iron core a.c. d.c. output output input input C D iron core iron core a.c. d.c. output output input input

1 marks

Answer: A

This question in 0625/12 Feb/March 2022

Q375 · The circuit shown is being used to measure the resistance of resistor Z 0625/11 May/June 2022

30 The circuit shown is being used to measure the resistance of resistor Z. Y Z X What is the correct combination of meters to determine the resistance of resistor Z? meter X meter Y A ammeter ammeter B ammeter voltmeter C voltmeter ammeter D voltmeter voltmeter

1 marks

Answer: C

This question in 0625/11 May/June 2022

Q376 · The diagram shows the circuit diagram symbol of an electrical component 0625/11 May/June 2022

31 The diagram shows the circuit diagram symbol of an electrical component. Which component does the symbol represent? A light-dependent resistor B relay coil C thermistor D variable resistor

1 marks

Answer: C

This question in 0625/11 May/June 2022

Q377 · What is the advantage of connecting lamps in parallel in a lighting circuit? 0625/11 May/June 2022

32 What is the advantage of connecting lamps in parallel in a lighting circuit? A A smaller fuse is needed to protect the lamps. B If the filament of one lamp breaks, the remaining lamps stay lit. C The current taken from the supply is less. D The lamps use less power.

1 marks

Answer: B

This question in 0625/11 May/June 2022

Q378 · The diagram shows a circuit of six identical lamps connected to a battery 0625/11 May/June 2022

33 The diagram shows a circuit of six identical lamps connected to a battery. S Q P T R U Which lamps are brightest? A P only B Q and R only C S, T and U only D P, Q, R, S, T and U are equally bright

1 marks

Answer: A

This question in 0625/11 May/June 2022

Q379 · Why is a fuse used in an electrical circuit? 0625/11 May/June 2022

34 Why is a fuse used in an electrical circuit? A so that the current can have only one value B to prevent the current becoming too large C to provide a path to earth if a fault occurs D to save electrical energy

1 marks

Answer: B

This question in 0625/11 May/June 2022

Q380 · Which transformer can change a 240 V a.c 0625/11 May/June 2022

35 Which transformer can change a 240 V a.c. input into a 15 V a.c. output? A B 800 turns 40 turns 1000 turns 25 turns C D 2400 turns 15 turns 1200 turns 75 turns

1 marks

Answer: D

This question in 0625/11 May/June 2022

Q381 · A current-carrying coil in a magnetic field experiences a turning effect 0625/11 May/June 2022

37 A current-carrying coil in a magnetic field experiences a turning effect. Three suggestions for increasing the turning effect are given. 1 Increase the number of turns on the coil. 2 Increase the current in the coil. 3 Increase the strength of the magnetic field. Which suggestions are correct? A 1 and 2 only B 1 and 3 only C 2 and 3 only D 1, 2 and 3

1 marks

Answer: D

This question in 0625/11 May/June 2022

Q382 · Four circuits are set up 0625/12 May/June 2022

29 Four circuits are set up. In which circuit does the meter measure the potential difference (p.d.) across the resistor? A B C D V A A V

1 marks

Answer: D

This question in 0625/12 May/June 2022

Q383 · Which circuit is correctly labelled? 0625/12 May/June 2022

31 Which circuit is correctly labelled? A B battery cell ammeter galvanometer A light-dependent resistor relay A V ammeter voltmeter C D cell battery heater switch thermistor ammeter fixed resistor A galvanometer

1 marks

Answer: A

This question in 0625/12 May/June 2022

Q384 · The diagram shows an electric circuit 0625/12 May/June 2022

32 The diagram shows an electric circuit. X IX Y IY IX is the current in resistor X. IY is the current in resistor Y. Which statement describes the current from the power supply? A greater than IX and greater than IY B greater than IX and less than IY C less than IX and greater than IY D less than IX and less than IY

1 marks

Answer: A

This question in 0625/12 May/June 2022

Q385 · The diagram shows a battery connected to a potential divider and to two lamps, P and Q 0625/12 May/June 2022

33 The diagram shows a battery connected to a potential divider and to two lamps, P and Q. P X Y Q The slider on the potential divider is moved from end X to end Y of the resistor. Which row shows the effect on the brightness of each lamp? brightness of P brightness of Q A brighter brighter B brighter dimmer C unchanged brighter D unchanged dimmer

1 marks

Answer: C

This question in 0625/12 May/June 2022

Q386 · Which circuit shows a meter being used correctly to measure the current in a resistor? 0625/13 May/June 2022

29 Which circuit shows a meter being used correctly to measure the current in a resistor? A B C D A V A V

1 marks

Answer: A

This question in 0625/13 May/June 2022

Q387 · A resistor and a battery are connected in series 0625/13 May/June 2022

30 A resistor and a battery are connected in series. The value of the resistor is 20 . The potential difference (p.d.) of the battery is 4.0 V. What is the current in the resistor? A 0.20 A B 4.0 A C 5.0 A D 80 A

1 marks

Answer: A

This question in 0625/13 May/June 2022

Q388 · The circuit shown includes a cell 0625/13 May/June 2022

31 The circuit shown includes a cell. Which other components does the circuit contain? A lamp, voltmeter and switch B resistor, thermistor and bell C switch, variable resistor and heater D switch, heater and fuse

1 marks

Answer: C

This question in 0625/13 May/June 2022

Q389 · Two 4  resistors are connected in parallel 0625/13 May/June 2022

32 Two 4  resistors are connected in parallel. 4 Ω X Y 4 Ω What is the combined resistance between X and Y? A less than 4  B 4  C 8  D more than 8 

1 marks

Answer: A

This question in 0625/13 May/June 2022

Q390 · Which statement about identical lamps in a parallel circuit is not correct? 0625/13 May/June 2022

33 Which statement about identical lamps in a parallel circuit is not correct? A If one lamp blows, the others remain switched on. B The current in each lamp is different. C The lamps can be switched on and off separately. D The lamps have the same voltage across each of them.

1 marks

Answer: B

This question in 0625/13 May/June 2022

Q391 · Why is a fuse used in an electrical circuit? 0625/13 May/June 2022

34 Why is a fuse used in an electrical circuit? A so that the current can have only one value B to prevent the current becoming too large C to provide a path to earth if a fault occurs D to save electrical energy

1 marks

Answer: B

This question in 0625/13 May/June 2022

Q392 · The information describes the currents in three different circuits 0625/13 May/June 2022

35 The information describes the currents in three different circuits. Circuit P has a steady current of 0.52 A in one direction. Circuit Q has a current that continually changes between 0.25 A and 0.35 A but is always in the same one direction. Circuit R has a peak current of 0.52 A that changes direction periodically. Which circuits contain a direct current? A P only B P and Q C Q and R D R only

1 marks

Answer: B

This question in 0625/13 May/June 2022

Q393 · Which piece of equipment is designed to produce a type of electromagnetic wave? 0625/12 Oct/Nov 2022

16 Which piece of equipment is designed to produce a type of electromagnetic wave? A electric fire B electric generator C electric motor D electromagnet

1 marks

Answer: A

This question in 0625/12 Oct/Nov 2022

Q394 · An electric hairdryer is rated 230 V, 2 A 0625/12 Oct/Nov 2022

25 An electric hairdryer is rated 230 V, 2 A. Which circuit could be used to check that these ratings are correct? A B power power supply supply V A hairdryer A hairdryer V C D power power supply supply V A hairdryer hairdryer A V

1 marks

Answer: D

This question in 0625/12 Oct/Nov 2022

Q395 · The diagram shows a circuit used to control the potential difference (p.d.) across a lamp 0625/12 Oct/Nov 2022

26 The diagram shows a circuit used to control the potential difference (p.d.) across a lamp. The variable resistor is adjusted until the p.d. across the lamp is 6.0 V. The current in the lamp is 0.5 A. V What is the resistance of the lamp? A 0.083 Ω B 3.0 Ω C 6.5 Ω D 12.0 Ω

1 marks

Answer: D

This question in 0625/12 Oct/Nov 2022

Q396 · A circuit containing a cell, a resistor and a lamp is set up as shown 0625/12 Oct/Nov 2022

29 A circuit containing a cell, a resistor and a lamp is set up as shown. A student connects a voltmeter to the circuit in one of the positions shown. In which position does the voltmeter measure the potential difference (p.d.) across the lamp? A V B V V D V C

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2022

Q397 · The diagram shows a potential divider circuit 0625/12 Oct/Nov 2022

30 The diagram shows a potential divider circuit. V The temperature of the thermistor increases. What happens to the resistance of the thermistor, and what happens to the reading on the voltmeter? resistance of voltmeter thermistor reading A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: A

This question in 0625/12 Oct/Nov 2022

Q398 · A student sets up four circuits using identical batteries and three identical lamps 0625/12 Oct/Nov 2022

31 A student sets up four circuits using identical batteries and three identical lamps. In which circuit will all the lamps be the brightest? A B C D

1 marks

Answer: D

This question in 0625/12 Oct/Nov 2022

Q399 · Which diagram shows the circuit symbol for a fuse? 0625/12 Oct/Nov 2022

32 Which diagram shows the circuit symbol for a fuse? A B C D

1 marks

Answer: D

This question in 0625/12 Oct/Nov 2022

Q400 · If the insulation within a mains cable becomes damaged, two of the wires in it may touch… 0625/12 Oct/Nov 2022

33 If the insulation within a mains cable becomes damaged, two of the wires in it may touch and cause a short circuit. Which row is correct? safety device which the danger when this happens avoids this danger A a large current will overheat a fuse the wiring and lead to a fire B a large current will overheat a relay the wiring and lead to a fire C the appliance at the end a fuse of the cable will be damaged D the appliance at the end a relay of the cable will be damaged

1 marks

Answer: A

This question in 0625/12 Oct/Nov 2022

Q401 · Transformers are used in the transmission of electrical power to houses 0625/12 Oct/Nov 2022

35 Transformers are used in the transmission of electrical power to houses. Which type of transformer is used at the power station prior to connection to the power lines and which type is used prior to delivery to the houses? power station before houses A step-down step-down B step-down step-up C step-up step-down D step-up step-up

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2022

Q402 · A student is investigating a resistance wire 0625/13 Oct/Nov 2022

26 A student is investigating a resistance wire. She measures the current in a 50 cm length of resistance wire. A resistance wire The student repeats the experiment using a 100 cm length of the same resistance wire. What is the effect of this change on the current in the circuit and on the resistance of the wire? effect on effect on current resistance A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: B

This question in 0625/13 Oct/Nov 2022

Q403 · The diagram shows the circuit that a student uses to determine the resistance of resistor… 0625/13 Oct/Nov 2022

29 The diagram shows the circuit that a student uses to determine the resistance of resistor R. meter 1 R meter 2 Which row describes meter 1 and meter 2? meter 1 meter 2 A ammeter ammeter B ammeter voltmeter C voltmeter ammeter D voltmeter voltmeter

1 marks

Answer: C

This question in 0625/13 Oct/Nov 2022

Q404 · The diagram shows a potential divider circuit 0625/13 Oct/Nov 2022

30 The diagram shows a potential divider circuit. V The temperature of the thermistor increases. What happens to the resistance of the thermistor, and what happens to the reading on the voltmeter? resistance of voltmeter thermistor reading A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: A

This question in 0625/13 Oct/Nov 2022

Q405 · The diagram shows a series circuit containing a fixed voltage power supply, a thermistor… 0625/13 Oct/Nov 2022

31 The diagram shows a series circuit containing a fixed voltage power supply, a thermistor, a light-dependent resistor (LDR) and a lamp. Which set of conditions makes the lamp brightest? light intensity temperature shining on LDR of thermistor A bright high B bright low C dim high D dim low

1 marks

Answer: A

This question in 0625/13 Oct/Nov 2022

Q406 · The diagram shows a circuit containing a cell, a lamp and two ammeters 0625/13 Oct/Nov 2022

32 The diagram shows a circuit containing a cell, a lamp and two ammeters. ammeter 1 A A ammeter 2 The current reading on ammeter 2 is 0.20 A. What is the name for this type of circuit and what is the reading on ammeter 1? type of circuit reading on ammeter 1 A series 0.20 A B series greater than 0.20 A C parallel 0.20 A D parallel greater than 0.20 A

1 marks

Answer: A

This question in 0625/13 Oct/Nov 2022

Q407 · The circuit connecting a room heater to the mains electricity supply has a fuse in it 0625/13 Oct/Nov 2022

33 The circuit connecting a room heater to the mains electricity supply has a fuse in it. The fuse melts and switches off the circuit. Why does the wire in the fuse melt? A The air in the room becomes too damp. B The air in the room reaches its required temperature. C The insulation around the circuit wire becomes damaged. D The current in the circuit becomes too large.

1 marks

Answer: D

This question in 0625/13 Oct/Nov 2022

Q408 · A laboratory has a standard wire of known resistance 0625/12 Feb/March 2023

26 A laboratory has a standard wire of known resistance. It also has other wires, made from the same material as the standard wire, but of different lengths and diameters. Which wire would definitely have a resistance of less than the standard wire? wire length wire diameter A longer larger B longer smaller C shorter larger D shorter smaller

1 marks

Answer: C

This question in 0625/12 Feb/March 2023

Q409 · The diagram shows a circuit 0625/12 Feb/March 2023

27 The diagram shows a circuit. Which energy transfers occur? A battery → lamp → surrounding air B battery → surrounding air → battery C lamp → surrounding air → battery D surrounding air → lamp → battery

1 marks

Answer: A

This question in 0625/12 Feb/March 2023

Q410 · X, Y and Z are lamps 0625/12 Feb/March 2023

28 X, Y and Z are lamps. + 8 + = 2 Y Z X In which lamps is there a current? key ¥ = current in lamp X = no current in lamp \ \ *& x |X ~* { & SIN 0 OW D> ~*~ * QL A] x

1 marks

Answer: C

This question in 0625/12 Feb/March 2023

Q411 · The diagram shows a circuit 0625/12 Feb/March 2023

29 The diagram shows a circuit. Which change causes the bulb in the circuit to become brighter? A a decrease in light intensity B a decrease in temperature C an increase in light intensity D an increase in temperature

1 marks

Answer: D

This question in 0625/12 Feb/March 2023

Q412 · The current in a kettle is 10 A and the kettle is protected by a 13 A fuse 0625/12 Feb/March 2023

30 The current in a kettle is 10 A and the kettle is protected by a 13 A fuse. The owner of the kettle replaces the 13 A fuse with a 3 A fuse. What happens when the kettle is switched on? A The fuse melts and the kettle might be damaged. B The fuse melts and the kettle is undamaged. C The fuse does not melt and the kettle works correctly. D The fuse does not melt but the kettle fails to work.

1 marks

Answer: B

This question in 0625/12 Feb/March 2023

Q413 · Over time, the strength of the magnets in an electric motor decreases 0625/12 Feb/March 2023

33 Over time, the strength of the magnets in an electric motor decreases. Which row describes two ways to keep the motor running at its original speed? current in number of turns the coil on the coil A decrease decrease B decrease increase C increase decrease D increase increase

1 marks

Answer: D

This question in 0625/12 Feb/March 2023

Q414 · Which particles move to cause a current in a copper wire? 0625/11 May/June 2023

25 Which particles move to cause a current in a copper wire? A copper atoms B electrons from the copper atoms C protons from the copper nuclei D neutrons from the copper nuclei

1 marks

Answer: B

This question in 0625/11 May/June 2023

Q415 · Four students draw a circuit diagram of the apparatus used to measure the resistance of… 0625/11 May/June 2023

26 Four students draw a circuit diagram of the apparatus used to measure the resistance of resistor R. Which circuit is correct? A B V A R R A V C D V A R R A V

1 marks

Answer: D

This question in 0625/11 May/June 2023

Q416 · The battery on a bicycle is connected in parallel to its lamp and bell 0625/11 May/June 2023

27 The battery on a bicycle is connected in parallel to its lamp and bell. The circuit includes two switches, S1 and S2. S1 bell S2 The cyclist closes S1 to light the lamp. She then also closes S2 to sound the bell. What happens to the current in the battery and the power output from the battery when the cyclist closes S2? current in power output the battery from the battery A increases increases B increases stays the same C stays the same increases D stays the same stays the same

1 marks

Answer: A

This question in 0625/11 May/June 2023

Q417 · Which symbol represents an electric heater? 0625/11 May/June 2023

28 Which symbol represents an electric heater? A B C D

1 marks

Answer: D

This question in 0625/11 May/June 2023

Q418 · A student connects the circuit shown 0625/11 May/June 2023

29 A student connects the circuit shown. 1 bell 2 3 4 Which switches must be closed for the bell to ring without lighting the lamp? A 1 and 2 only B 1 and 3 only C 1, 3 and 4 D 2, 3 and 4

1 marks

Answer: B

This question in 0625/11 May/June 2023

Q419 · A double-insulated electrical appliance must be connected safely to the electricity supply 0625/11 May/June 2023

30 A double-insulated electrical appliance must be connected safely to the electricity supply. Which statement is correct? A It must be connected with a fuse and an earth wire. B It can be connected with a fuse only. C It can be connected with an earth wire only. D It does not need a fuse or an earth wire.

1 marks

Answer: B

This question in 0625/11 May/June 2023

Q420 · What is an advantage of transmitting electricity at a high voltage? 0625/11 May/June 2023

33 What is an advantage of transmitting electricity at a high voltage? A It is faster. B It is safer. C Less energy is wasted. D Less equipment is needed.

1 marks

Answer: C

This question in 0625/11 May/June 2023

Q421 · Which circuit can be used to measure the resistance of a resistor? 0625/12 May/June 2023

26 Which circuit can be used to measure the resistance of a resistor? A B C D V V V V A A A A

1 marks

Answer: B

This question in 0625/12 May/June 2023

Q422 · The circuit diagram shows a battery connected to two resistors 0625/12 May/June 2023

28 The circuit diagram shows a battery connected to two resistors. Four labelled ammeters are connected into the circuit. Which ammeter shows the largest reading?

1 marks

Answer: D

This question in 0625/12 May/June 2023

Q423 · Two lamps are connected in parallel 0625/12 May/June 2023

29 Two lamps are connected in parallel. S1 S2 S3 Which switches must be closed so that both lamps light? A S1 and S2 only B S1 and S3 only C S2 and S3 only D S1, S2 and S3

1 marks

Answer: D

This question in 0625/12 May/June 2023

Q424 · The diagram represents the transmission of electricity from a power station to homes that… 0625/12 May/June 2023

33 The diagram represents the transmission of electricity from a power station to homes that are many kilometres away. Two transformers are labelled X and Y. transmission pylon cables pylon cables large houses power ground station X distance Y What type of transformers are X and Y? X Y A step-down transformer step-down transformer B step-down transformer step-up transformer C step-up transformer step-down transformer D step-up transformer step-up transformer

1 marks

Answer: C

This question in 0625/12 May/June 2023

Q425 · A power supply of electromotive force (e.m.f.) 12 V is connected across a 3  resistor 0625/13 May/June 2023

25 A power supply of electromotive force (e.m.f.) 12 V is connected across a 3  resistor. Which ammeter is most suitable to measure the current in the resistor? A an ammeter with a range 0–0.5 A B an ammeter with a range 0–1 A C an ammeter with a range 0–5 A D an ammeter with a range 0–50 A

1 marks

Answer: C

This question in 0625/13 May/June 2023

Q426 · The cost of electrical energy is $0.25 for each unit of 1 kW h 0625/13 May/June 2023

26 The cost of electrical energy is $0.25 for each unit of 1 kW h. A 2200 W heater is switched on for 48 minutes. What is the cost of this use? A $0.44 B $0.55 C $26 D $440

1 marks

Answer: A

This question in 0625/13 May/June 2023

Q427 · The diagram shows six different electrical circuit components 0625/13 May/June 2023

27 The diagram shows six different electrical circuit components. G A V M Which circuit symbol is not present in the diagram? A resistor B voltmeter C generator D thermistor

1 marks

Answer: D

This question in 0625/13 May/June 2023

Q428 · The circuit shown contains three switches and four lamps P, Q, R and S 0625/13 May/June 2023

28 The circuit shown contains three switches and four lamps P, Q, R and S. switch 1 lamp P lamp Q switch 2 lamp R switch 3 lamp S Which switches must be closed to light only lamps P and R? A switch 1 only B switch 1 and switch 2 C switch 1 and switch 3 D switch 2 and switch 3

1 marks

Answer: A

This question in 0625/13 May/June 2023

Q429 · An electric heater has a metal frame 0625/13 May/June 2023

29 An electric heater has a metal frame. The heating element is connected to the live and neutral wires of an a.c. supply. The metal frame is connected to the earth wire. Which row gives the correct connections for the fuse and the switch? fuse switch A in the earth in the live B in the earth in the neutral C in the live in the live D in the live in the neutral

1 marks

Answer: C

This question in 0625/13 May/June 2023

Q430 · Four appliances all use an electric current to operate 0625/13 May/June 2023

31 Four appliances all use an electric current to operate. Which appliance uses the magnetic effect of the current? A a heater B a light bulb C a relay D a remote controller

1 marks

Answer: C

This question in 0625/13 May/June 2023

Q431 · How is electricity transmitted over large distances and why is it transmitted in this way? 0625/13 May/June 2023

33 How is electricity transmitted over large distances and why is it transmitted in this way? how why A at high voltage for safety B at high voltage to reduce energy loss C at low voltage for safety D at low voltage to reduce energy loss

1 marks

Answer: B

This question in 0625/13 May/June 2023

Q432 · Which statement about a voltmeter is correct? 0625/11 Oct/Nov 2023

26 Which statement about a voltmeter is correct? A It has a scale which is marked in amperes (A). B It must be connected in series in a circuit. C It measures potential difference (p.d.). D It must have three terminals.

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2023

Q433 · Two 2.0  resistors are connected in parallel 0625/11 Oct/Nov 2023

29 Two 2.0  resistors are connected in parallel. What is the combined resistance of the resistors? A less than 2.0  B exactly 2.0  C more than 2.0  but less than 4.0  D exactly 4.0 

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2023

Q434 · An electric heater is plugged into the mains supply using a fused plug 0625/11 Oct/Nov 2023

30 An electric heater is plugged into the mains supply using a fused plug. The current in the heater is 10 A. The cable attached to the heater is rated at 15 A. The fuses available are rated at 1.0 A, 3.0 A, 5.0 A and 13 A. Which fuse should be used? A 1.0 A B 3.0 A C 5.0 A D 13 A

1 marks

Answer: D

This question in 0625/11 Oct/Nov 2023

Q435 · A battery is connected to an ammeter and a resistor 0625/12 Oct/Nov 2023

25 A battery is connected to an ammeter and a resistor. A The ammeter reading is 0.20 A. An electrical insulator is connected in parallel with the resistor. What is the ammeter reading? A 0 A B between 0 A and 0.20 A C 0.20 A D greater than 0.20 A

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2023

Q436 · Which equation is correct for resistance R, potential difference (p.d.) V and current I ? 0625/12 Oct/Nov 2023

27 Which equation is correct for resistance R, potential difference (p.d.) V and current I ? V I A R = I B R = V + I C R = V D R = V  I

1 marks

Answer: A

This question in 0625/12 Oct/Nov 2023

Q437 · In which heating system circuit would thermistors not be useful? 0625/12 Oct/Nov 2023

29 In which heating system circuit would thermistors not be useful? A to keep different rooms at different temperatures B to turn an alarm on if the system overheats C to turn a heating system off at a particular temperature D to turn a heating system on when a sound is detected

1 marks

Answer: D

This question in 0625/12 Oct/Nov 2023

Q438 · Which statement is correct? 0625/12 Oct/Nov 2023

30 Which statement is correct? A A fuse is included in a circuit to prevent the current becoming too high. B A fuse should be connected to the neutral wire in a plug. C An electric circuit will only work if it includes a fuse. D An earth wire is needed to prevent the fuse blowing.

1 marks

Answer: A

This question in 0625/12 Oct/Nov 2023

Q439 · Which graph of current I against time t represents an alternating current (a.c.)? 0625/12 Oct/Nov 2023

31 Which graph of current I against time t represents an alternating current (a.c.)? A B I I 0 0 0 t 0 t C D I I 0 0 0 t 0 t

1 marks

Answer: D

This question in 0625/12 Oct/Nov 2023

Q440 · A transformer has Np turns on its primary coil and Ns turns on its secondary coil 0625/12 Oct/Nov 2023

33 A transformer has Np turns on its primary coil and Ns turns on its secondary coil. The voltage across the primary coil is Vp and the voltage across the secondary coil is Vs. What is the relationship between these four quantities? A Vp  Vs = Np  Ns V N B p = p V N s s V N C p = s V N s p V D p = Np  Ns V s

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2023

Q441 · A student uses an ammeter to measure the current in a resistor 0625/13 Oct/Nov 2023

25 A student uses an ammeter to measure the current in a resistor. He considers three different circuits, as shown. 1 2 3 A A A In which of the circuits does the ammeter measure the current in the resistor? A 1, 2 and 3 B 1 and 2 only C 1 only D 3 only

1 marks

Answer: B

This question in 0625/13 Oct/Nov 2023

Q442 · Resistors of resistance 2.0Q and 3.0Q are connected in two different circuits 0625/13 Oct/Nov 2023

29 Resistors of resistance 2.0Q and 3.0Q are connected in two different circuits. 2.00 3.0Q What is the total resistance in each circuit? series parallel A less than 2.0Q less than 2.00 B less than 2.0Q greater than 3.0Q Cc greater than 3.0Q less than 2.0Q D greater than 3.00 greater than 3.0Q

1 marks

Answer: C

This question in 0625/13 Oct/Nov 2023

Q443 · A generator uses the principle of electromagnetic induction 0625/13 Oct/Nov 2023

31 A generator uses the principle of electromagnetic induction. axis of rotation coil of copper wire magnet N S V Which change would increase the induced electromotive force (e.m.f.) in the coil? A increasing the number of turns in the coil B placing the magnets further apart C using a coil made from steel wire D reversing one of the magnets

1 marks

Answer: A

This question in 0625/13 Oct/Nov 2023

Q444 · What is a transformer used for? 0625/13 Oct/Nov 2023

33 What is a transformer used for? A changing a direct current into an alternating current B changing the magnitude of an alternating voltage C reducing the frequency of an alternating current D switching off the current in a circuit when there is a fault

1 marks

Answer: B

This question in 0625/13 Oct/Nov 2023

Q445 · The diagram shows a circuit containing two identical lamps and three ammeters 0625/12 Feb/March 2024

26 The diagram shows a circuit containing two identical lamps and three ammeters. ammeter 1 A A ammeter 3 A ammeter 2 The current in ammeter 1 is 0.30 A. Which row gives possible values for the currents in ammeters 2 and 3? current in current in ammeter 2 / A ammeter 3 / A A 0.15 0.00 B 0.15 0.30 C 0.30 0.00 D 0.30 0.30

1 marks

Answer: B

This question in 0625/12 Feb/March 2024

Q446 · Which material is a good electrical conductor? 0625/11 May/June 2024

25 Which material is a good electrical conductor? A glass B copper C rubber D wood

1 marks

Answer: B

This question in 0625/11 May/June 2024

Q447 · What is an electric current and how is an ammeter positioned in a circuit to measure the… 0625/11 May/June 2024

26 What is an electric current and how is an ammeter positioned in a circuit to measure the current in a resistor? what is an positioning electric current? of an ammeter A a flow of charge in parallel with the resistor B a flow of charge in series with the resistor C a flow of voltage in parallel with the resistor D a flow of voltage in series with the resistor

1 marks

Answer: B

This question in 0625/11 May/June 2024

Q448 · The circuit in the diagram contains four switches, S1, S2, S3 and S4 0625/11 May/June 2024

28 The circuit in the diagram contains four switches, S1, S2, S3 and S4. S1 S2 S4 S3 Which three switches must be closed for the heater to work? A S1, S2 and S3 B S1, S2 and S4 C S1, S3 and S4 D S2, S3 and S4

1 marks

Answer: B

This question in 0625/11 May/June 2024

Q449 · A student makes a small d.c 0625/11 May/June 2024

31 A student makes a small d.c. motor. The teacher supplies the following equipment. ● battery ● ammeter ● voltmeter ● coil of wire ● magnets ● resistor The student is also able to use other equipment if he wishes. Which equipment must be used? A ammeter, battery and resistor B ammeter, coil of wire and voltmeter C battery, coil of wire and magnets D magnets, resistor and voltmeter

1 marks

Answer: C

This question in 0625/11 May/June 2024

Q450 · Which graph of voltage against time shows an a.c 0625/13 May/June 2024

26 Which graph of voltage against time shows an a.c. voltage? A B voltage voltage 0 0 0 time 0 time C D voltage voltage 0 0 0 time 0 time

1 marks

Answer: D

This question in 0625/13 May/June 2024

Q451 · A student designs a circuit to turn on a fan when the temperature increases 0625/13 May/June 2024

28 A student designs a circuit to turn on a fan when the temperature increases. Which component does the student need to use in her circuit? A B C D

1 marks

Answer: D

This question in 0625/13 May/June 2024

Q452 · A class is designing a d.c 0625/13 May/June 2024

31 A class is designing a d.c. motor. To achieve a greater turning effect, three suggestions are made. 1 Have a larger current in the coil of the motor. 2 Have a stronger magnet in the motor. 3 Put a larger number of turns on the coil. Which suggestions will help to increase the turning effect? A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only

1 marks

Answer: A

This question in 0625/13 May/June 2024

Q453 · What is a thermistor? 0625/11 Oct/Nov 2024

28 What is a thermistor? A a container to keep a hot liquid warm B a circuit to control room temperature C a temperature-dependent resistor D a heater for a room

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2024

Q454 · The diagram shows a circuit containing two identical resistors connected to a battery 0625/11 Oct/Nov 2024

29 The diagram shows a circuit containing two identical resistors connected to a battery. The current is measured at X and at Y. X Y Which row is correct? current at Y arrangement compared with of resistors current at X A parallel less than X B parallel equal to X C series less than X D series equal to X

1 marks

Answer: D

This question in 0625/11 Oct/Nov 2024

Q455 · The diagram shows the information label on an electric kettle 0625/12 Oct/Nov 2024

27 The diagram shows the information label on an electric kettle. Voltage: 110 V a.c. Power: 1500 W Frequency: 50 Hz What is the value of the current when the kettle is heating water? A 0.073 A B 2.2 A C 3.7 A D 14 A

1 marks

Answer: D

This question in 0625/12 Oct/Nov 2024

Q456 · Which circuit enables the resistance of the thermistor to be determined? 0625/12 Oct/Nov 2024

28 Which circuit enables the resistance of the thermistor to be determined? A B V V A A C D A A V V

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2024

Q457 · A student makes a battery by connecting five cells, as shown 0625/12 Oct/Nov 2024

29 A student makes a battery by connecting five cells, as shown. 2.5 V 2.0 V 1.5 V 2.5 V 2.0 V What is the electromotive force (e.m.f.) of the battery? A 1.0 V B 2.1 V C 3.5 V D 10.5 V

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2024

Q458 · The diagram shows a simple circuit 0625/13 Oct/Nov 2024

26 The diagram shows a simple circuit. A wire V The ammeter reading is 2.0 A and the voltmeter reading is 6.0 V. What is the resistance of the wire? A 0.33  B 3.0  C 8.0  D 12 

1 marks

Answer: B

This question in 0625/13 Oct/Nov 2024

Q459 · The diagram shows a torch containing two cells, a switch and a lamp 0625/13 Oct/Nov 2024

28 The diagram shows a torch containing two cells, a switch and a lamp. cells plastic case brass switch connecting strip lamp Which circuit diagram is correct for the torch? A B C D

1 marks

Answer: A

This question in 0625/13 Oct/Nov 2024

Q460 · Which circuit contains a thermistor and a heater? 0625/12 Feb/March 2025

31 Which circuit contains a thermistor and a heater? A B C D

1 marks

Answer: D

This question in 0625/12 Feb/March 2025

Q461 · Four 2.0 V cells are connected together in series to make a battery, as shown 0625/12 Feb/March 2025

32 Four 2.0 V cells are connected together in series to make a battery, as shown. What is the combined electromotive force (e.m.f.) of the battery? A 0.50 V B 2.0 V C 6.0 V D 8.0 V

1 marks

Answer: D

This question in 0625/12 Feb/March 2025

Q462 · A teacher makes a circuit using three 1.5 V cells and two 20  resistors connected in… 0625/11 May/June 2025

31 A teacher makes a circuit using three 1.5 V cells and two 20  resistors connected in series. Which row gives the combined electromotive force (e.m.f.) of the cells and the combined resistance of the resistors? combined combined e.m.f. / V resistance /  A 1.5 10 B 1.5 40 C 4.5 10 D 4.5 40

1 marks

Answer: D

This question in 0625/11 May/June 2025

Q463 · A 10 V d.c 0625/12 May/June 2025

28 A 10 V d.c. power supply is connected across a resistor. The current in the resistor is 0.050 A. What is the resistance of the resistor? A 0.0050  B 0.50  C 2.0  D 200 

1 marks

Answer: D

This question in 0625/12 May/June 2025

Q464 · A resistor and a thermistor are connected in a series circuit, as shown 0625/12 May/June 2025

29 A resistor and a thermistor are connected in a series circuit, as shown. A V What happens to the readings on the ammeter and the voltmeter when the thermistor is heated? ammeter reading voltmeter reading A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: D

This question in 0625/12 May/June 2025

Q465 · In which circuit does the ammeter read 2.0 A? 0625/12 May/June 2025

30 In which circuit does the ammeter read 2.0 A?

1 marks

Answer: B

This question in 0625/12 May/June 2025

Q466 · A 10 V d.c 0625/13 May/June 2025

28 A 10 V d.c. power supply is connected across a resistor. The current in the resistor is 0.050 A. What is the resistance of the resistor? A 0.0050  B 0.50  C 2.0  D 200 

1 marks

Answer: D

This question in 0625/13 May/June 2025

Q467 · A resistor and a thermistor are connected in a series circuit, as shown 0625/13 May/June 2025

29 A resistor and a thermistor are connected in a series circuit, as shown. A V What happens to the readings on the ammeter and the voltmeter when the thermistor is heated? ammeter reading voltmeter reading A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: D

This question in 0625/13 May/June 2025

Q468 · In which circuit does the ammeter read 2.0 A? 0625/13 May/June 2025

30 In which circuit does the ammeter read 2.0 A? 6.02 6.02 3.00 3.00

1 marks

Answer: B

This question in 0625/13 May/June 2025

Q469 · A student constructs four circuits, each containing a fuse 0625/12 Oct/Nov 2025

31 A student constructs four circuits, each containing a fuse. The fuse blows in one circuit and both lamps in the circuit go out. In which circuit does the fuse blow and both lamps go out? A B C D

1 marks

Answer: D

This question in 0625/12 Oct/Nov 2025

Q470 · There is a current of 2.0 A in a resistor of resistance 8.0  0625/13 Oct/Nov 2025

30 There is a current of 2.0 A in a resistor of resistance 8.0 . What is the potential difference (p.d.) across the resistor? A 0.25 V B 4.0 V C 8.0 V D 16 V

1 marks

Answer: D

This question in 0625/13 Oct/Nov 2025

Q471 · The circuit symbol for an ammeter is a circle with a letter A in it 0625/13 Oct/Nov 2025

32 The circuit symbol for an ammeter is a circle with a letter A in it. The symbol for a fuse is a rectangle with a central line. Which pair of circuit symbols is also one involving a circle followed by one involving a rectangle? A a lamp and a cell B a motor and a thermistor C a switch and a heater D a voltmeter and a battery

1 marks

Answer: B

This question in 0625/13 Oct/Nov 2025