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Two equal point charges are placed on x=...

Two equal point charges are placed on x=-a and x=+a on the x=axis. Another point charge Q is placed on the origin. IF this charge is displaced a small distance x along x-axis, then the change of potential energy approximately will be proportional to

A

`x`

B

`x^2`

C

`x^3`

D

`frac(1)(x)`

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UNITED BOOK HOUSE-MODEL PAPER SET-01-EXERCISE
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