Question

An insulated charged sphere of radius $5 \,cm$ has a potential of $10\, V$ at the surface. What is the potential at centre?

• A. 10 V
• B. zero
• C. same as that at 5 cms from the surface
• D. same as that at 25 cms from the surface

Answer 1

Answer: (A)

10 V

Answer 2

Each point of the sphere must be at the same potential and at any point interior to the sphere, the potential is same as that at the surface.