Electrostatics Question 429

Question: A hollow conducting sphere of radius $ R $ has a charge $ (+Q) $ on its surface. What is the electric potential within the sphere at a distance $ r=\frac{R}{3} $ from its centre [MP PMT 2001; UPSEAT 2001; MP PET 2001, 02; Orissa JEE 2005]

Options:

A) Zero

B) $ \frac{1}{4\pi {\varepsilon _{0}}}\frac{Q}{r} $

C) $ \frac{1}{4\pi {\varepsilon _{0}}}\frac{Q}{R} $

D) $ \frac{1}{4\pi {\varepsilon _{0}}}\frac{Q}{r^{2}} $

Show Answer

Answer:

Correct Answer: C

Solution:

Inside a conducting body, potential is same everywhere and equals to the potential of it’s surface



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