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Two charges, each equal to q, are kept a...

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_(0)=(q)/(2)` is placed at the origin. If charge q0 is given a small displacement (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`

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A
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