Electrostatics Question 800
Question: If earth is assumed to be a conducting sphere having radius $ R=6400km, $ it’s capacitance will be:
Options:
A) $ 711\mu F $
B) $ 218\mu F $
C) $ 16\mu F $
D) $ 8\mu F $
Show Answer
Answer:
Correct Answer: D
Solution:
[d] $ C=4\pi {\varepsilon _{0}}R=\frac{1}{9\times 10^{9}}\times 6400\times 10^{3}=711\mu F $
