Question

Why excess of charge in conductor always lies on surface? ​

Answer 1

Answer:

Because if the field is not zero, then charges inside the conductor would be moving. SO: charges in a conductor redistribute themselves wherever they are needed to make the field inside the conductor ZERO. Excess charges are always on the surface of the conductors.

Answer 2

Explanation:

Because if the field is not zero, then charges inside the conductor would be moving. SO: charges in a conductor redistribute themselves wherever they are needed to make the field inside the conductor ZERO. Excess charges are always on the surface of the conductors.