Skip to content

Course home

Sign up

2.3 Domestic uses and safety

EasyMediumHard
123456789101112131415161718192021222324
Question 15
F

A cable is damaged so that the bare live wire touches the bare earth wire. Why does a very large current flow?

[1]
A

The earth wire has a much larger resistance than the live wire has

B

The potential difference across the appliance rises well above 230 V

C

The potential difference between the live wire and the neutral wire falls to 0 V

D

A potential difference of about 230 V acts across a very low resistance

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.

Question bank