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A charge Q is placed at each of the oppo...

A charge Q is placed at each of the opposite corners of a square. A charge q is placed at each of the other two corners. If the net electrical force on Q is zero, then the Q/q equals

A

`Q = -2sqrt(2)q`

B

`Q = - q/2`

C

`Q = -sqrt(8) q`

D

`Q - 2q`

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The correct Answer is:
A
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