Physics - Electrostatics Question with Solution | TestHub

In the diagram shown, infinite number of squares are arranged. On the vertex of each square a charge in placed. On the vertex of the $n^{\text{th }}$ square, the charge $\frac{\mathrm{Q}}{2^{\mathrm{n}}}$ is placed. If the side of outermost square is L and $\frac{\mathrm{Q}}{4\pi {ϵ}_0\mathrm{L}}=\frac{1.2}{\sqrt{2}+1}$ volt potential (in volt) at center 'O'.