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10.3 Electrical energy and power

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Question 16

A warning lamp has a potential difference of 9.0 V across it. A charge of 24 C passes through the lamp in 40 s.

What is the power of the lamp?

[1]
A

0.60 W0.60\ \mathrm{W}0.60 W

B

216 W216\ \mathrm{W}216 W

C

5.4 W5.4\ \mathrm{W}5.4 W

D

15 W15\ \mathrm{W}15 W

Markscheme

10.3 Electrical energy and power Questions

  1. GCSE
  2. /Physics
  3. /10.3 Electrical energy and power

105 exam-style questions on Edexcel GCSE Physics 10.3 Electrical energy and power, covering 10.3.1 The heating effect of an electric current, 10.3.2 Reducing energy transfer in wires, 10.3.3 Advantages and disadvantages of the heating effect, 10.3.4 Energy transferred by an electrical circuit, 10.3.5 Electrical power, and 10.3.6 Energy transfers in domestic devices. Each one has a worked solution and a mark scheme showing where the marks go.

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