Question

Cables and wires need to be good electrical conductors.

They are made of .



For safety, wires are covered with materials that do not conduct electricity.



The wires are covered with .



Any material that is a non-conductor is an

Answer 1

Cables and wires are made of copper.

Wires are usually covered with insulating materials such as plastic, rubber-like polymers or varnish.

Any material that is a non-conductor is an insulator.