Question

A hollow sphere of radius $5cm$ is charged such that the potential on its surface is $10V.$ The potential at the center of the sphere will be :

• A. $0V$
• B. $10V$
• C. same as at a point $5cm$ away from the surface
• D. same as at point $25cm$ away from the center

Answer 1

The correct option is B $10V$

In the case of a hollow sphere, the potential at any point inside the sphere is equal to the potential on its surface. As the potential on the surface is $10V$, therefore, potential at the centre of the sphere would also be $10V$.