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A charge q1 exerts some force on a secon...

A charge `q_1` exerts some force on a second charge `q_2`. A third charge `q_3` is brought near them. Then, force exerted by `q_1` on `q_2` will:

A

decrease in magnitude

B

increase in magnitude

C

remain unchanged

D

increase if `q_2` is of the same sign as `q_1` and will decrease, if `q_2` is of opposite sign.

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