Question

what is an insulator​

Answer 1

Explanation:

An electrical insulator is a material whose internal electric charges do not flow freely; very little electric current will flow through it under the influence of an electric field. ... Some materials such as glass, paper and Teflon, which have high resistivity, are very good electrical insulators.

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Answer 2

Answer:

the substance which do not allowed to current to flow through them are called insulator they almost have no free electron and they offer a very high resistance in the path of the current