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AQA · GCSE · Physics · Higher

Mains Live-to-Neutral Potential Difference

Q01.6 1 mark

What is the potential difference between the live wire and neutral wire in the mains electricity supply?

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Marking points

  1. 1 Gives 230 V.

Full-mark answer

230 V

Why this answer loses marks

Gives the mains frequency instead of a potential difference.

The question asks for the standard live-to-neutral potential difference, not the supply frequency.