A series of free GCSE/IGCSE Physics Notes and Lessons.
What is meant by three-core cable?
Functions of the three wires in the UK.
How the earth wire and the fuse protect us from electrical shocks?
Mains electricity; live, neutral, earth, plugs, fuses and circuit breakers
Structure of wires and cables, fuses and earthing, AC and DC supply and the function of a residual current circuit breaker.
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