why insulators do not conduct electricity

In the last article, I have discussed about the conductors, semiconductors and insulators. Today I will discuss why insulators do not conduct electricity or why insulator is insulator?

As I have already discussed that there is energy band gap between valence band and conduction band. This energy band gap is very large in case of insulators. It may be minimum of 3 electron volt or more. Continue reading “why insulators do not conduct electricity”