Q 1.22 (b):  A uniformly charged conducting sphere of 2.4 m diameter has a surface charge density of $80.0 \frac{\mu C}{m^{2}}$. (b) What is the total electric flux leaving the surface of the sphere?

Using Gauss's law, we know that :

$\phi = q/ \epsilon_{0}$

$\implies \phi = 1.45\times10^{-3}/ 8.85\times10^{-12} = 1.6\times10^{8}\ Nm^2C^{-1}$

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