Question

Why are insulators not able to pass electricity through

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Answer 1

Aluminum and most other metals do not conduct electricity quite as good as copper. Insulators are materials that have just the opposite effect on the flow of electrons. They do not let electrons flow very easily from one atom to another. ... These electrons are not free to roam around and be shared by neighboring atoms.

Answer 2

Step-by-step explanation:

This is because electrons requires energy to get excited. The energy required is very high. Thus insulators do not conduct electricity or insulators are insulators because of very large energy band gap between the valence band and conduction band.