0654.P4.2.07 — Recall and use the equation for electrical energy E = IVt: past paper questions
Real questions on 0654.p4.2.07 — recall and use the equation for electrical energy e = ivt
The newest 7 of 7 written questions. Open one to see it on the real paper.
- 0973/42 · May/June 2026 · Q11c[2]
(c) In another circuit, a 3.6V cell is connected across a single resistor. The current in the circuit is 0.18A. Calculate the energy supplied by the cell in 1 minute. OMEN .......... [2]
See it on the paper → - 0973/31 · May/June 2025 · Q10b(i)[3]
Calculate the electrical energy transferred to the motor in 900 s. State the unit of your answer. energy = unit
See it on the paper → - 0973/41 · May/June 2024 · Q3c(ii)[4]
The potential difference across the filament lamp is 12 V. During the demonstration, the filament lamp uses 24 000 J of electrical energy. Calculate how much charge passes through the filament lamp during the demonstration. State the unit of your answer. charge = unit
See it on the paper → - 0973/41 · May/June 2021 · Q3b(ii)[3]
Calculate the amount of energy dissipated by the wire in 15 seconds. State the unit of your answer. energy = unit =
See it on the paper → - 0973/42 · May/June 2021 · Q6c(i)[3]
Calculate the amount of energy used by the electric immersion heater. energy = J
See it on the paper → - 0973/42 · May/June 2021 · Q6c(ii)[1]
State the amount of electrical work done by the heater during this process.
See it on the paper → - 0973/41 · October/November 2020 · Q12b[3]
The laptop computer has a rechargeable battery. The battery takes 2 hours to charge fully when a voltage of 19 V is used with a current of 1.1 A. Calculate the energy transferred during the 2 hours. energy = J
See it on the paper →
What examiners said
This was one of the more demanding questions for candidates. Many did not know the relationship and so tried various manipulations of the figures. Quite a few started down the route of calculating power but then divided by time instead of multiplying. Some gained the mark for the unit, which was awarded independently of the calculation. Some candidates did show their working which allowed them to...
— Examiner report, May/June 2025, 0973/31 Q10(b)(i) (Cambridge)
The formula for electrical energy was well known. Candidates were not as confident in choosing the appropriate unit.
— Examiner report, May/June 2021, 0973/41 Q3(b)(ii) (Cambridge)
The formula for electrical energy transferred was well known. The correct result was obtained by candidates who successfully converted the unit of time into seconds.
— Examiner report, October/November 2020, 0973/41 Q12(b) (Cambridge)
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