ElectrostaticsHard

Question

Six charges of magnitude + q and −q are fixed at the corners of a regular hexagon of edge length a as shown in the figure. The electrostatic potential energy of the system of charged particles is :

Options

A.
B.
C.
D.

Solution

                ⇒              
(i) E.P.E. of charge +q at point A can be given as :
EA = + − & E.P.E. of system
⇒    ES =
where EA = EB = EC = ED = EE = EF
∴    ES = 3 EA
∴    ES = + 6 + 3 =

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