What is the function of an earth wire? Why is it necessary to earth the metallic appliances?
What is the function of an earth wire? Why is it necessary to earth the metallic appliances?
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Sometimes, the insulation of live wire is torn and due to this, the live wire touches the metallic body of the appliances. This causes the flow, of current in a metallic body. This current flows to the Earth through the earth wire and does not harm the use- of the appliances. Therefore, to prevent the user getting an electric shock, due to leakage of current to metallic body, Earth wire must always be used.
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