Question

what do you understand by electricity at rest​

Answer 1

In case of charges at rest, the charge itself is not flowing anywhere, that is, the electrons don't have a defined general movement. ... Electric charges at rest means there is only electric field in a particular region.

Answer 2

Do not confuse electric charges at rest and movement of electrons. In case of charges at rest, the charge itself is not flowing anywhere, that is, the electrons don’t have a defined general movement. It means that the electrons will vibrate and rotate but not have any translatory motion.