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 q0 = q/2is placed at the origin. If charge q0, is given a small displacement y(y<< a) along the y-axis, the net force acting on the particle is proportional to
(a) y
(b) - y
(c) 1/y
(d) - 1/y​

Answer 1

Answer:

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