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Three charges Q, 2Q, 8Q are to be placed...

Three charges Q, 2Q, 8Q are to be placed on a line whose length is R metre. Lacate the positive where these charges should be placed such that the potential energy of the system is minimum.

A

`(R )/3`

B

`(2R )/3`

C

`(3R )/2`

D

`(4R )/3`

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