plumiCharge, current and potential difference: Edexcel A‑Level Physics questions
Every Edexcel A-Level Physics exam question on Charge, current and potential difference (specification points 31–35), 2016–2025, with its mark scheme and examiner’s report.
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Calculations
Q11(b)
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Q14(b)
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Q15(a)
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Q12(b)
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Q3(a)
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Q12(b)
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Q9(b)(i)
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Q17(b)
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Q12(a)
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Q17(b)(ii)
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Q5(a)
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Q11(a)(ii)
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All 31 questions on Charge, current and potential difference, as a list
- June 2025, Paper 1, Q11(b) (3 marks): A package containing a light emitting diode (LED) is marked “20 mA 3.2 V to operate normally”. A student uses a 5 V power supply of negligible internal resistan
- June 2025, AS Paper 1, Q7 (1 mark): A wire of decreasing diameter is connected in a circuit. There is a current from X to Y in the wire, as shown. current X Y Which row of the table gives the curr
- June 2025, AS Paper 1, Q14(b) (3 marks): When demand for power is low on Eigg, excess energy is stored in a number of batteries. The batteries have a total capacity of 4400 A h when fully charged. When
- June 2024, Paper 1, Q7 (1 mark): A length of wire has a non-uniform cross-sectional area. There is an electric current in the wire. Which of the following is not constant along the length of th
- June 2024, AS Paper 1, Q5 (1 mark): A copper wire has a cross-sectional area A and length l. There is a potential difference V across the wire. The resistance of the wire is R. Copper has n conduc
- June 2024, AS Paper 1, Q15(a) (3 marks): The manufacturer of an electric car states that the battery stores a maximum charge of 110 A h. The graph shows how the current through the battery varies with
- June 2023, Paper 1, Q12(b) (2 marks): I is constant but A decreases towards end Y. Explain how this affects the drift velocity of the free electrons in the conductor. (2)
- June 2023, Paper 3, Q3(a) (2 marks): A student planned to vary the current in the heater from 0 A to 5 A. The student connected the following circuit to measure the current in the heater. mA heater
- June 2023, AS Paper 1, Q12(b) (4 marks): A potential difference of 9.8 V is applied across the resistor and the current in the resistor is 0.12 A. Deduce whether the value labelled on the resistor is s
- June 2022, Paper 3, Q9(b)(i) (2 marks): The reading on the ammeter is 17.5 mA. Calculate the value of the potential difference (p.d.) across the filament lamp. (2) p.d. across filament lamp =
- June 2022, AS Paper 1, Q4 (1 mark): A conductor has a resistance R. A constant potential difference is applied across the conductor. The drift velocity of the charge carriers in the conductor is v
- November 2021, Paper 1, Q4 (1 mark): Which of the following is the current I in ampere? A 3.0 B 4.0 C 5.0 D 6.0
- November 2021, Paper 1, Q17(b) (3 marks): An ammeter of this type has a resistance of 625 Ω and will measure a maximum current of 1.6 mA. The ammeter can be adapted to measure potential difference by ad
- November 2021, AS Paper 1, Q5 (1 mark): A torch is switched on for 5 minutes. The current in the torch bulb is 6 mA. Which of the following gives the charge, in coulombs, that flows in this time? A 6
- October 2020, Paper 1, Q12(a) (3 marks): Show that the shunt would need to have a resistance of about 0.01 Ω to adapt this ammeter to read up to a maximum current of 2.0 A. (3)
- October 2020, Paper 1, Q17(b)(ii) (2 marks): Solving the equation above produces an answer of I = 550 A. At maximum power, the car can accelerate from rest to sixty miles per hour in under 7 s. The maximum
- October 2020, Paper 3, Q5(a) (3 marks): During a storm, a potential difference of 2.7 MV was generated between a cloud and the top of the lightning conductor on the statue. A flash of lightning passed
- June 2019, AS Paper 1, Q4 (1 mark): A potential difference V is applied across the ends of a conductor. The drift velocity of the charge carriers in the conductor is v. Which of the following expr
- June 2019, AS Paper 1, Q11(a)(ii): Explain why connecting the voltmeter across both the ammeter and the thermistor would improve the experiment. The ammeter had negligible resistance. 2)
- June 2018, Paper 1, Q1 (1 mark): Part of an electric circuit is shown. ȍ 2 A A ȍ What is the current shown by the ammeter? A 3 A B 4 A C 5 A D 6 A
- June 2018, Paper 3, Q4(b) (4 marks): The student drew a graph of how current varies with p.d. She drew a straight line on the graph and claimed that the data demonstrates that the filament lamp obe
- June 2017, Paper 1, Q1 (1 mark): A volt can be defined as a A coulomb per joule. B coulomb per second. C joule per coulomb. D joule per second.
- June 2017, Paper 3, Q8(b)(i) (2 marks): The student wrote the following conclusion. “The graph shows that in general the LED is not an ohmic conductor. However, for potential differences greater than
- June 2017, Paper 3, Q8(b)(ii) (4 marks): The student used the LED with a 5.0 V power supply as shown in the circuit. 5.0 V To be lit to normal brightness the current through the LED must be 18 mA. Calc
- June 2017, AS Paper 1, Q4 (1 mark): A hair dryer is used for 3 minutes. The operating current is 6 A. What charge flows in this time? A 0.03 C B 2 C C 18 C D 1080 C
- June 2017, AS Paper 1, Q10(b) (3 marks): The value obtained from caliper 2 was used to determine the cross‑sectional area of the rod and the electrical properties of the rod were investigated. Calculat
- June 2017, AS Paper 1, Q14(a) (2 marks): Determine the resistance of the filament bulb when the potential difference is 7.0 V. (2) Resistance =
- June 2017, AS Paper 2, Q16(a) (2 marks): Resistance can be measured directly using an ohmmeter or indirectly using measurements from a voltmeter and ammeter. Describe two benefits of using an ohmmeter
- June 2016, AS Paper 1, Q14(a)(ii) (2 marks): Calculate the maximum charge that the battery can provide. (2) Maximum charge =
- June 2016, AS Paper 1, Q14(a)(iii) (3 marks): The mobile phone ‘runs out of charge’. Calculate the minimum time taken, in hours, for the battery to fully recharge. charging current = 0.90 A (3) Minimum time
- June 2016, AS Paper 1, Q14(b) (4 marks): The mobile phone in part (a), when purchased, was supplied with a charging plug marked 1 A, 5V. The mobile phone owner lost the original charging plug and repla
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