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What is the force on q?...

What is the force on q?

A

`(sqrt(2) - 1/2) q^2/ (16 pi epsilon _0 d^2)`

B

`q^2/ (16 pi epsilon _0 d^2)`

C

` q^2/ (32 pi epsilon _0 d^2)`

D

`(sqrt(2) q^2/ (16 pi epsilon _0 d^2)`

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