Question

Why rubber and plastic is used to cover electric wire and plug tops?

Answer 1

so tht it does not produce an electric shock

Answer 2

Rubbers and Plastics are bad conductors of electricity. So we can call the insulators.

whenever the rubber or plastic is used to cover the electric wire it becomes shock proof and if a person by mistakely touches the wire then also he will not feel any electric shock due to rubber insulation.

rubber and plastic acts as a barrier to the flow of electrons .