In a cuboid of dimension 2 L × 2 L × L, a charge q is placed at the center of the surface ' S ' having area of 4 L^2. The flux through the opposite…

In a cuboid of dimension $\displaystyle 2 \mathrm{~L} \times 2 \mathrm{~L} \times \mathrm{L}$, a charge $\displaystyle q$ is placed at the center of the surface ' S ' having area of $\displaystyle 4 \mathrm{~L}^2$. The flux through the opposite surface to ' S ' is given by