13 Two equal point charges A and B are R distance apart A third point charge placed on the perpendicular bisector at a distance

Question

13 Two equal point charges A and B are R distance apart A third point charge placed on the perpendicular bisector at a distance d from the centre will experience maximum electrostatic force when R 1 d 2 2 3 d R 2 R 2 d 1 2 4 d 2 2R

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