Question

why do we connect earth wire in house? give reasons​

Answer 1

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Earthing means connection with the earth which is at zero potential by means of a metal wire. This protects the user from the risk of shock by passing the current directly to the earth. And it also protects the electrical appliances.

@MissTranquillity

Answer 2

Answer:

The main function of the earth wire is to conduct the leaking current from the electrical appliance to the ground . It is conected to the outer metallic body of the appliance . It is necessary to earth metallic appliances , as it protects the user from electric shocks by transferring the current to the earth

Earthing means connection with the earth which is at zero potential by means of a metal wire. This protects the user from the risk of shock by passing the current directly to the earth. And it also protects the electrical appliances.