Question

a solid conducting sphere with an area of 16m² has total charge of 4$\mu C.$ Determine the electric field through the Gaussian surface

Answer 1

The Gauss's law says

$$\Phi=\oint EdA=\frac{q}{\epsilon_0}$$

$$\Phi=\frac{4*10^{-6}}{8.85*10^{-12}}=4.5*10^5\:\rm N\cdot m^2/C$$