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Physics (AS & A Level) · Oct / Nov 2025 · Paper 14 · Question 35

9702Electric current

A wire carries a current of 5.6 A. What is the number of conduction electrons that pass a point on the wire in a time of 20 s?

  1. A1.8 × 10^18
  2. B2.2 × 10^19
  3. C3.5 × 10^19
  4. D7.0 × 10^20

As printed in the paper

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Correct answer: D. 7.0 × 10^20

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