Q. Electric potential at the centre of a charged hollow metal sphere is
A) Zero
B) Twice as that on the surface
C) Half of that on the surface
D) Same as that on the surface
Explanation
(d) Electric potential of charged spherical shell
$V = \frac{q}{4\pi\varepsilon_{0}R}\ \ \ \ \ \ \ \ \ \ \ \ \ \ (0 \leq r \leq R)$
∴ Electric potential at centre=Electric potential on the surface.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.