Question

Two charges, each equal to q, are kept at x = -a and x = a on the X-axis. A particle of mass m and charge q is placed at the origin. If lcharge q, is given a , small displacement (y<< a) along the Y-axis. then net force acting on the particle is proportional to
(1) y
(2)-y
(3) 1/y
(4)-1/y​

Answer 1

Answer:

option 4

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