Earth wire connects the metallic body of electric equipment to the earth. Any electric wire leakage is transported to the ground via the earth wire. This prevents electric shocks to the user of the electric device. It is for this reason why metallic appliances must be earthed.
What is the function of an earth wire? Why is it necessary to earth metallic appliances?
What is the function of an earth wire? Why is it necessary to earth metallic appliances?