what is meaning ofpermittivity in electric force ? why permittivity of conductors is zero??

Permittivity is measure of resistance offered by medium when forming an electric field in a medium. In simple word, permittivity is a measure of how an electric field affects, and is affected by, a dielectric medium. As resistance offered by conductor is zero so their permittivity is zero.Hope it clears. If u have doubts then please clearify. And if u like my answer then please approve answer