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2.3 Domestic uses and safety

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Question 11
F

Four students describe what the earth wire of an appliance does. Which description is correct?

[1]
A

It carries the current back to the supply while the appliance is working

B

It joins the metal case of the appliance to earth so the case stays at 0 V

C

It carries the alternating potential difference to the case of the appliance

D

It lowers the potential difference across the appliance to a safer value

Markscheme

2.3 Domestic uses and safety Questions

  1. GCSE
  2. /Physics
  3. /2.3 Domestic uses and safety

40 exam-style questions on AQA GCSE Physics 2.3 Domestic uses and safety, covering 2.3.1 Direct and alternating potential difference and 2.3.2 Mains electricity. Each one has a worked solution and a mark scheme showing where the marks go.

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