Question

In insulator there is not a single free electrons ??

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Answer 1

Insulators do not allow the transfer of electrons from atom to atom . If excess charge is transferred to a location then also it remains in the same place. Because in case of insulators there is no free flow of electrons.

Answer 2

Insulators do not allow the transfer of electrons from atom to atom. If excess charge is transferred to a location then also it remains in the same place. Because in case of insulators there is no free flow of electrons.