Taking earth to be a metallic sphere, its capacity will approximately be

Question

Aicharya · Accepted Answer

Radius of earth, $R=6400 \mathrm{~km}=6.4 \times 10^6 \mathrm{~m}$ Taking earth to be a metallic sphere, its capacitance is given as $\begin{aligned} C & =4 \pi \varepsilon_0 R=\frac{1}{9 \times 10^9} \times 6.4 \times 10^6 \ & =0.7111 \times 10^{-3} \mathrm{~F}=711.1 \times 10^{-6} \mathrm{~F} \ & =711 \mu \mathrm{F}=700 \mu \mathrm{F} \end{aligned}$

Taking earth to be a metallic sphere, its capacity will approximately be

Solution