Question

Why do we say that metallic device's should be earthed ?​

Answer 1

Answer:

The metallic body of electric appliances is connected to the earth using earth wire so that any leakage of electric current is transferred to the ground. This prevents any electric shock to the user.

Answer 2

Answer:

The metallic body of electric appliances is connected to the earth using earth wire so that any leakage of electric current is transferred to the ground. This prevents any electric shock to the user.

Explanation:

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