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Two particles A and B each having a charge Q are placed a distance d apart. Where should a particles of charge q be placed on the perpendicular bisector of AB so that it experience maximum force?What is the magnitude of this maximum force? Want explaining answer write steps also
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Net force acting f on particle of charge q is 2Fcosθ
So,
But
So
For f to be maaximum,
On differentiation, x comes as
Substitute in (1) to get magnitude of force.