← Physics (0625)
Q1 / 5
Electrical safety
Foundation
2 marks
In the UK mains supply, what are the colours and voltages of the live, neutral, and earth wires?
A
Live: brown (230 V); Neutral: blue (0 V); Earth: green-yellow (0 V protection)
B
Live: red; Neutral: black; Earth: green only
C
Live: blue; Neutral: brown; Earth: red
D
All wires are the same colour in the UK
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