JEE Advanced · PhysicsEasy
A hollow metal sphere of radius is charged such that the potential on its surface is . The potential at the center of the sphere is:
- A.
- B.
- C.
- D.
Show correct answer & step-by-step solution
Correct answer: C —
Solution
- For a hollow conducting sphere, the electric field inside is zero.
- Since , the potential must be constant inside.
- The potential at any point inside is equal to the potential at the surface.
- Given , the potential at the center is .
- Hence the answer is (C).
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