When is the function of an earthwire y exit neccesarry to earth metall

1.	When is the function of an earthwire y exit neccesarry to earth metallic appliance
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.

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