Electrostatics Question 72
Question: In a spherical condenser radius of the outer sphere is $ R $ . The different in the radii of outer and inner sphere in$ x $ . Its capacity is proportional to
Options:
A) $ \frac{xR}{(R-x)} $
B) $ \frac{x(R-x)}{r} $
C) $ \frac{R(R-x)}{x} $
D) $ \frac{R}{x} $
Show Answer
Answer:
Correct Answer: C
Solution:
$ C\propto \frac{ab}{b-a}; $ a = R ? x, b = R so, $ C\propto \frac{R(R-x)}{x} $
