Question

A substance that is a great insulator will not conduct an electric current under which condition?

Answer 1

Insulator:

1. Insulators are materials that have the exact opposite effect on electron flow as conductors do.
2. They make it difficult for electrons to move from one atom to another.
3. Insulators are materials with tightly bound electrons in their atoms.
4. These electrons are not free to move around and share space with other atoms.

Therefore, a substance that is a great insulator will not conduct an electric current under most conditions but there is a sufficiently high potential then an insulator conduct electric current for example in the case of lightning, air is an insulator but still conduct electric current .