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2.3.2 Mains electricity
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The three-core cable

The three-core cable

Three-core mains cable showing brown live, blue neutral, green-and-yellow earth, appliance metal case, and potential references

Most mains appliances connect to the supply through a three-core cable. It contains three separate copper conducting wires inside one outer covering: the live wire, the neutral wire and the earth wire.

2.3.2 Mains electricity Lesson

  1. GCSE
  2. /Physics
  3. /2.3.2 Mains electricity

Step-by-step lessons on AQA GCSE Physics 2.3.2 Mains electricity. Each one builds up to exam-style questions. Build a strong grip on equations, units and Key Stage 3 fundamentals before tackling the more demanding topics like electromagnetism, the particle model of matter and space physics.

Lessons