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Consider a system of three charges $\large\frac{q}{3},\frac{q}{3}$and $\large\frac{-2q}{3}$ placed at points A, B and C, respectively, as shown in figure. Take O to be the centre of the circle of radius R and angle $CAB = 60^{\circ}$

1 Answer

(B) the potential energy of the system is zero
Hence B is the correct answer.
answered Jun 6, 2014 by meena.p

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