Electrostatics Question 514
Question: A hollow metallic sphere of radius R is given a charge Q. Then the potential at the centre is [Orissa JEE 2005]
Options:
A) Zero
B) $ \frac{1}{4\pi {\varepsilon _{0}}}.\frac{Q}{R} $
C) $ \frac{1}{4\pi {\varepsilon _{0}}}.\frac{2Q}{R} $
D) $ \frac{1}{4\pi {\varepsilon _{0}}}.\frac{Q}{2R} $
Show Answer
Answer:
Correct Answer: B
Solution:
Potential V any where inside the hollow sphere, including the centre is $ V=\frac{1}{4\pi {\varepsilon _{0}}}\frac{Q}{r} $ .
