Three charged particles having charge q, -2q, q are placed in a line a – InterviewSolution

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1.	Three charged particles having charge q, -2q, q are placed in a line at points (-a,0), (0,0), (a,o) respectively. The expression for electric potential at P (r,0) . If r>>a is ?
Answer» Three charged particles having charge q, -2q, q are placed in a line at points (-a,0), (0,0), (a,o) respectively. The expression for electric potential at P (r,0) . If r>>a is ?

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