Q. The capacitance of an isolated conducting sphere of radius $R$is proportional to
A) $R^{- 1}$
B) $R^{2}$
C) $R^{- 2}$
D) $R$
Explanation
(d) The capacity of an isolated spherical conductor of radius $R$ is $4\pi\varepsilon_{0}R$
$\therefore\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ C\ \propto R$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.