Question

if the radius of earth is 6400 km, then what will be its capacitance in microfarad unit?

Answer 1

Dear Student ,
Here in this case ,from the given question we can take that the capacitance of earth is ,
$C=4\pi {\epsilon }_{0}r=\frac{64\times {10}^5}{9\times {10}^9}=711\mu F$
Regards