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A-LevelPhysicsD.C. circuits9702/12 · May/June 2025 · Q341 Mark

A resistor of resistance 200 Ω is connected to a supply that has a p.d. of 4.00 V. How many electrons enter the resistor in 4.00 s?

A3.13 × 10^16
B1.25 × 10^17
C5.00 × 10^17
D1.25 × 10^21

✓ Correct answer

C: 5.00 × 10^17

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About this question

Topic
D.C. circuits, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source
A-Level Physics, May/June 2025 Paper 1 Variant 2, question 34.

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