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2.3 Domestic uses and safety

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Question 14
F

The potential difference of the live wire relative to earth is measured over one complete cycle of the mains supply. Which statement describes the measurement?

[1]
A

It reaches a maximum in one direction, then a maximum in the other

B

It rises to a maximum in one direction, then falls to zero and stays there

C

It stays at about 230 V throughout the whole of the cycle

D

It stays at 0 V until the appliance is switched on and then rises

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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