Question

Which of the following is an insulator a) copper b) rubber c) iron d) none of these

Answer 1

Heya friend,

Here is the answer:

ANSWER: RUBBER is an insulator

Hope my answer helps you :)

Regards,
Shobana
^_^

Answer 2

ANSWER:

Out of the following a) Copper b) Rubber c) Iron, Rubber is the best insulator.

EXPLANATION:

                 An insulator is a material from where the current does not flow without much obstruction, the better the insulator the worse is the flow of electricity. Out of the above, both copper and iron are conductors where the charges flow smoothly, conductors are materials where the electricity flows without much obstruction from the wire.

               The best conductor known is Silver where the electricity flows the best but the most widely used conductors is Copper because of its cheap price.