Physics # 1 0.0 / 5 ? FunFunNone Created by: BunterCreated on: 17-05-13 12:01 What is a alternating current? Electrcity crrent in a circuit that repeatly reverses its direction 1 of 5 What is a frequency? The number of complete cycles an alternating passes through each second. The unit of frequency is hertz (Hz) 2 of 5 What is a live wire? The wire of a mian circuit that has a potential that alternates from positive to negative and back each cycle. 3 of 5 What is a neutral wire? The wire of a mians circuit hat is earthed at the local substation so its poitentialis close to zero 4 of 5 What does earthed mean? Connected to the groundby means of conducting lead or wire 5 of 5
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