Question

Calculate the total flux passing through each face of the cube for a charge of 5 micro coulomb which is placed 5cm above the lower face of the cube whose side length is 1 cm

Answer 1

$$\Phi_s=\frac{q}{6\epsilon_0}\\\Phi_s=\frac{5\cdot10^{-6}}{6(8.85\cdot10^{-12})}=9.42\cdot10^{4}\ Vm$$