Electrical quantities — Paper 1 · IGCSE Physics (9-1) 0972

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 0972/11 May/June 2018

31 A student measures the potential difference across a device and the current in the device. Which calculation gives the resistance of the device? A current + potential difference B current ÷ potential difference C potential difference ÷ current D potential difference × current

1 marks

Answer: C

This question in 0972/11 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 0972/11 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 0972/11 May/June 2018

30 Diagram 1 shows two thin, uncharged strips of plastic. Diagram 2 shows the same strips after they have been rubbed with a dry cloth. strips strips of plastic of plastic diagram 1 diagram 2 Which row describes the charge on the strips after rubbing, and the force between the strips after rubbing? charge on strips force between strips A opposite attraction B opposite repulsion C the same attraction D the same repulsion

1 marks

Answer: D

This question in 0972/11 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 0972/11 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 0972/11 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 0972/11 May/June 2019

35 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 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: D

This question in 0972/11 May/June 2019

29 A plastic rod is rubbed with a dry cloth. The rod becomes positively charged. Why has the rod become positively charged? A It has gained electrons. B It has gained neutrons. C It has lost electrons. D It has lost neutrons.

1 marks

Answer: C

This question in 0972/11 Oct/Nov 2019

30 A teacher asks her class “What quantity can be recorded in volts?”. Student 1 says “The potential difference across a resistor”. Student 2 says “The rating of a fuse”. Student 3 says “The electromotive force of a battery”. Which students are correct? A 1 only B 1 and 2 C 1 and 3 D 2 and 3

1 marks

Answer: C

This question in 0972/11 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 0972/11 Oct/Nov 2019

29 Three statements about electric charge are given. 1 An ammeter directly measures how much electric charge is in an object. 2 A moving electric charge can be detected by an ammeter. 3 A flow of electric charge is an electric current. Which statements 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: C

This question in 0972/11 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 0972/11 May/June 2020

29 A cloth is used to rub an uncharged plastic rod. Both the rod and the cloth become charged. Why does the plastic rod become negatively charged and the cloth become positively charged? A The rod gains electrons and the cloth gains positive charges. B The rod gains electrons and the cloth loses electrons. C The rod loses electrons and the cloth gains electrons. D The rod loses electrons and the cloth loses positive charges.

1 marks

Answer: B

This question in 0972/12 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 0972/12 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 0972/12 May/June 2020

35 The diagrams P, Q and R show three voltage–time graphs. diagram P diagram Q + + voltage voltage 0 0 0 time 0 time – – diagram R + voltage 0 0 time – Which graphs show an alternating voltage? 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 0972/12 May/June 2020

36 The diagram shows a transformer. core primary coil secondary coil 40 turns 40 000 turns Which statement about this transformer is correct? A It can operate from a 12 V battery. B It has a core which is made of steel. C It steps the input voltage up by a factor of 1000. D It steps the input voltage down by a factor of 1000.

1 marks

Answer: C

This question in 0972/12 May/June 2020

29 What is an electric current in a metal wire? A a flow of electrons B a flow of neutrons C a flow of nucleons D a flow of protons

1 marks

Answer: A

This question in 0972/11 Oct/Nov 2020

30 Four wires are made of the same metal. Which wire has the greatest resistance? A a 100 cm long wire with a diameter of 3.0 mm B a 100 cm long wire with a diameter of 6.0 mm C a 10 cm long wire with a diameter of 3.0 mm D a 10 cm long wire with a diameter of 6.0 mm

1 marks

Answer: A

This question in 0972/11 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 0972/11 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 0972/11 Oct/Nov 2020

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 0972/11 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 0972/11 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 0972/11 Oct/Nov 2021

33 The metal cases of electrical appliances are connected to an earth wire. Which statement is not correct? A The live wire may become loose and touch the metal case. B If the metal case becomes live, the earth wire conducts current to the ground. C The earth wire needs to have a high resistance. D Earthing metal cases helps prevent a person from receiving an electric shock.

1 marks

Answer: C

This question in 0972/11 Oct/Nov 2021

35 Which graph represents an alternating current (a.c.)? A B current current 0 0 0 time 0 time C D current current 0 0 0 time 0 time

1 marks

Answer: A

This question in 0972/11 Oct/Nov 2021

29 A large battery is labelled with various items of information about the battery. 12 V 30 kg 216 kJ 680 A One of these items of information is the electromotive force (e.m.f.) of the battery. What is the e.m.f. of the battery? A 12 V B 30 kg C 216 kJ D 680 A

1 marks

Answer: A

This question in 0972/11 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 0972/11 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 0972/12 May/June 2022

30 A resistor has a potential difference (p.d.) of 12 V across it and a current of 0.60 A in it. What is the resistance of the resistor? A 0.050  B 2.0  C 7.2  D 20 

1 marks

Answer: D

This question in 0972/12 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 0972/12 May/June 2022

24 A plastic rod is rubbed with a cloth. plastic rod cloth The rod and the cloth both become charged as electrons move between them. The rod becomes negatively charged. Which diagram shows how the rod becomes negatively charged and shows the final charge on the cloth? A B electron electron – – movement – – – movement – – – – – + + – – + + – – + – – + – ++ + + – ++ + + + + final charge + + final charge on the cloth on the cloth C D electron electron – – – movement – – – movement – – – – – – – – – – – – – – – – – –– – – – –– – – – – final charge – – final charge on the cloth on the cloth

1 marks

Answer: B

This question in 0972/11 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 0972/11 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 0972/11 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 0972/11 May/June 2023

24 A plastic rod is rubbed with a dry cloth. The rod becomes positively charged. Why has the rod become positively charged? A It has gained electrons. B It has gained neutrons. C It has lost electrons. D It has lost neutrons.

1 marks

Answer: C

This question in 0972/12 May/June 2023

25 Which statement about electric current in a conductor is correct? A In a d.c. circuit, the electric current gradually decreases along the conductor. B In a d.c. circuit, the free electrons flow back and forth. C In an a.c. circuit, the electric current remains exactly the same all the time. D In an a.c. circuit, the flow of charge changes direction continually.

1 marks

Answer: D

This question in 0972/12 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 0972/12 May/June 2023

27 A lamp rated 12 V, 2.0 A is switched on for 60 s. How much energy is transferred? A 0.40 J B 10 J C 360 J D 1400 J

1 marks

Answer: D

This question in 0972/12 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 0972/12 May/June 2023

25 Object 1 is given a negative charge and placed on a balance. Object 2, which is also charged, is brought close to object 1 and the reading on the balance changes as shown. object 2 object 1 93.5 g 92.9 g Which action would further decrease the reading on the balance? A Add the same number of electrons to both objects. B Remove the same number of electrons from both objects. C Transfer electrons from object 1 to object 2. D Transfer electrons from object 2 to object 1.

1 marks

Answer: D

This question in 0972/11 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 0972/11 Oct/Nov 2023

27 How does the resistance of a metallic wire change: ● as its length increases ● as its cross-sectional area decreases? resistance as resistance as cross-sectional length increases area decreases A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: D

This question in 0972/11 Oct/Nov 2023

28 A plastic rod is rubbed with a cloth. The rod becomes positively charged because of the movement of charged particles. Which row gives the name of these charged particles and the direction in which they move? charged direction of particles movement A electrons from cloth to rod B electrons from rod to cloth C protons from cloth to rod D protons from rod to cloth

1 marks

Answer: B

This question in 0972/11 Oct/Nov 2023

25 Which material is a good electrical conductor? A glass B copper C rubber D wood

1 marks

Answer: B

This question in 0972/11 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 0972/11 May/June 2024

27 Which unit is used for the potential difference (p.d.) between two points in an electrical circuit? A ampere (A) B joule (J) C ohm () D volt (V)

1 marks

Answer: D

This question in 0972/11 May/June 2024

26 There is a current I in a resistor of resistance R. The potential difference (p.d.) across the resistor is V. Which equation gives the power P dissipated by the resistor? I I A P = IR B P = IV C P = R D P = V

1 marks

Answer: B

This question in 0972/12 May/June 2024

28 This question is about the potential difference (p.d.) across, and the current in, a variable resistor. p.d. current variable resistor The resistance of the variable resistor is increased. Which statement is correct? A The current can remain constant if the p.d. is decreased. B The current can remain constant if the p.d. is increased. C The p.d. can remain constant if the current is kept constant. D The p.d. can remain constant if the current is increased.

1 marks

Answer: B

This question in 0972/12 May/June 2024

25 Which row about electrical conduction in metals is correct? statement 1 statement 2 A It is the movement of free electrons. Electric charge is a flow of current. B It is the movement of positive ions. Electric charge is a flow of current. C It is the movement of free electrons. Electric current is a flow of charge. D It is the movement of positive ions. Electric current is a flow of charge.

1 marks

Answer: C

This question in 0972/11 Oct/Nov 2024

26 The diagram shows three wires, P, Q and R. They are all made from the same metal. P Q R 2 cm 2 cm 4 cm 0.8 cm2 0.8 cm2 1.6 cm2 Which list gives the wires in order of resistance, from lowest to highest? A P  Q  R B Q  R  P C R  P  Q D R  Q  P

1 marks

Answer: C

This question in 0972/11 Oct/Nov 2024

27 A 60 W lamp operates at normal brightness for 2.0 minutes. How much energy is transferred by the lamp? A 0.50 J B 30 J C 120 J D 7200 J

1 marks

Answer: D

This question in 0972/11 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 0972/11 Oct/Nov 2024

30 The mains voltage is 120 V. Which fuse should be fitted to an electric kettle with a power of 1.5 kW? A 3 A B 5 A C 10 A D 13 A

1 marks

Answer: D

This question in 0972/11 Oct/Nov 2024

27 The table gives data for four different electrical devices. Which device develops the greatest power? device voltage current A car headlight 12 V 3.0 A B cooling fan 110 V 0.40 A C electric spark generator 400 kV 0.10 mA D mains lamp 240 V 0.20 A

1 marks

Answer: D

This question in 0972/11 May/June 2025

25 A glass rod is rubbed with a silk cloth. The glass rod becomes positively charged. Which statement explains how this happens? A Negative charges move from the glass rod to the silk cloth. B Negative charges move from the silk cloth to the glass rod. C Positive charges move from the glass rod to the silk cloth. D Positive charges move from the silk cloth to the glass rod.

1 marks

Answer: A

This question in 0972/12 May/June 2025

26 Which statement describes what is happening when there is an electric current in a metal wire? A Electrons in the wire vibrate. B Electrons move along the wire. C Positive charges in the wire vibrate. D Positive charges move along the wire.

1 marks

Answer: B

This question in 0972/12 May/June 2025

27 Which two electrical quantities have the same unit? A current and charge B electromotive force (e.m.f.) and potential difference (p.d.) C potential difference (p.d.) and current D resistance and electromotive force (e.m.f.)

1 marks

Answer: B

This question in 0972/12 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 0972/12 May/June 2025

33 An ion of the element oxygen is negatively charged. Which change causes the ion to become a neutral oxygen atom? A gain of electrons B gain of protons C loss of electrons D loss of protons

1 marks

Answer: C

This question in 0972/12 May/June 2025