Question

why do we have a coating of plastic on metallic wire used as cable in electrical gadgets​

Answer 1

Explanation:

because plastic acts as an insulator which is coated on metallic wires .

Answer 2

ANSWER:-

• Most electrical wire is covered in a rubber or plastic coating called insulation.

• The purpose of insulation covering the metal part of an electrical wire is to prevent accidental contact with other conductors of electricity, which might result in an unintentional electric current through those other conductors.