Physics GCSE
neutral wire
What neutral wire means in Physics GCSE, as defined for AQA, OCR.
Definitions of neutral wire
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Reference: OCR
Completes the circuit and is held at about zero potential difference, close to earth potential.
It completes the circuit, providing the return path for charge driven out along the live wire.
The blue wire in a cable that completes the circuit, maintained at or close to 0 V.
Topics that use neutral wire
- Direct and alternating potential difference (AQA GCSE)
- Mains electricity (AQA GCSE)
- Powering Earth (OCR GCSE)
Related terms
- earth wire
- Live wire
- 230 V supply
- alternating current
- Alternating current in the home
- alternating potential difference
- Alternating voltage
- Changing potential difference in power transfer
Using neutral wire in the exam
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