NEET-XII-Physics
02: Electrostatic Potential And Capacitance
- #2A regular hexagon of side 10 cm has a charge 5 µC at each of its vertices. Calculate the potential at the centre of the hexagon.
Ans : 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,
Where,
.gif)
= Permittivity of free space
Therefore, the potential at the centre of the hexagon is 2.7 × 106 V.