MAINS ELECTRICITY

1 mark · Easy

Which of these wires in a plug is normally at 0 V?

ALive wireBNeutral wireCEarth wireDFuse

› Show answer

Correct option: Neutral wire

Common mistakes: Earth wire; Live wire

› Show mark scheme and worked solution

Marking points

B1 · 1 mark · Correctly selects 'Neutral wire'.

Worked solution

The neutral wire is normally at 0 V.

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