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
