Question

Electrical potential at the centre of a charged conductor is:

• A. zero
• B. twice as that on the surface
• C. half of that on the surface
• D. same as that on the surface

Answer 1

The correct option is D same as that on the surface

Inside a charged conductor there is no electric field that is $E=0$.

And, we know that $\frac{dV}{dr}=-E=0$

$⟹V=constant.$

Hence, electric potential at center of charged conductor is same as that on surface and at all points in conductor.

Answer_(D)