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2.3 Domestic uses and safety

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Question 20
H

Why is the live wire in a mains circuit still dangerous when the switch in the live wire is open?

[1]
A

A small current continues to flow through the open switch

B

The live wire on the supply side of the switch is still at about 230 V

C

The neutral wire on the supply side of the switch is still at about 230 V

D

The earth wire on the supply side of the switch is still at about 230 V

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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