Q. Capacitance $(in\ F)$ of a spherical conductor with radius $1m$ is
A) $1.1 \times 10^{- 10}$
B) $10^{- 6}$
C) $9 \times 10^{- 9}$
D) $10^{- 3}$
Explanation
(a) $C = 4\pi \in_{0}R = \frac{1}{9 \times 10^{9}} \times 1 = 1.1 \times 10^{- 10}F$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.