A regular hexagon of side $10\; cm$ has a charge $5 \;\mu C$ at each of its vertices. Calculate the potential at the centre of the hexagon.

Question

$\begin{array}{1 1} 2.7 \times 10^6\;V \\ 27 \times 10^6\;V \\ 0.027 \times 10^6\;V \\ 2.7 \times 10^{-6}\;V \end{array}$