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10.4 Mains electricity

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Question 31
F

A correctly connected UK mains supply is working normally. Which pair of wires has a potential difference of approximately zero?

[1]
A

Live and neutral.

B

Live and earth.

C

Live and the earthed case.

D

Neutral and earth.

Markscheme

10.4 Mains electricity Questions

  1. GCSE
  2. /Physics
  3. /10.4 Mains electricity

81 exam-style questions on Edexcel GCSE Physics 10.4 Mains electricity, covering 10.4.1 Direct and alternating current, 10.4.2 Live, neutral and earth wires; safety, 10.4.3 Mains wire potential differences and dangers, and 10.4.4 Power ratings and energy use. Each one has a worked solution and a mark scheme showing where the marks go.

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