The given figure shows six equal amount of charges, q, at the vertices of a regular hexagon.
Where, Charge, q = 5 µC = 5 × 10- 6 C
Side of the hexagon, l = AB = BC = CD = DE = EF = FA = 10 cm
Distance of each vertex from centre O, d = 10 cm
Electric potential at point O,
V = 6 ×(q/4πεod)
εo = Permittivity of free space
Therefore, the potential at the centre of the hexagon is 2.7 × 106 V.