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Energy, power and resistance

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Question 5

Two hundred and fifty million electrons travel between two points in a circuit. The total energy gained by the electrons is 8.0 × 10-10 J.

What is the potential difference between the two points?

A

3.2×10−18 V3.2 \times 10^{-18}\text{ V}3.2×10−18 V

B

4.0×10−11 V4.0 \times 10^{-11}\text{ V}4.0×10−11 V

C

2.0×101 V2.0 \times 10^1\text{ V}2.0×101 V

D

2.0×1010 V2.0 \times 10^{10}\text{ V}2.0×1010 V

Markscheme

Energy, power and resistance Questions

  1. A Level
  2. /Physics
  3. /Energy, power and resistance

26 exam-style questions on OCR A A Level Physics Energy, power and resistance, covering Circuit symbols, E.m.f. and p.d, Resistance, Resistivity, and Power. Each one has a worked solution and a mark scheme showing where the marks go.

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