Question

Earthing is necessary for the appliances of metallic body.why?

Answer 1

Explanation:

because it prevents from electric

shocks when we touch the wire

Answer 2

Earthing is necessary for the appliances of metallic body because -

• The metals are good conductor of the electricity and the metallic body of the electrical appliances can also conduct electricity through it.

• So, there are chances of accidental electrocution,if the body of the electrical appliance is made out of metal and any excessive electricity flows through that metallic body.

• Now,if there is earthing wire,then the excessive electricity will be carried out from the appliance and the chances of accidental electrocution will be decreased a lot.