Physics GCSE
Live wire
What Live wire means in Physics GCSE, as defined for AQA, OCR.
Definitions of Live wire
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Reference: OCR
Carries the alternating potential difference from the supply and alternates between a positive and a negative potential difference relative to the neutral wire.
The brown wire in a cable that carries the alternating potential difference from the supply.
Topics that use Live wire
- Direct and alternating potential difference (AQA GCSE)
- Powering Earth (OCR GCSE)
Related terms
- earth wire
- neutral wire
- 230 V supply
- alternating current
- Alternating current in the home
- alternating potential difference
- Alternating voltage
- Changing potential difference in power transfer
Using Live wire in the exam
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