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Q.

+2C and +6C two charges are repelling each other with a force of 12 N. If each charge is given -2C of charge, then the value of the force will be.

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a

4N (Repulsive)

b

8N (Repulsive)

c

4N (Attractive)

d

Zero

answer is D.

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Detailed Solution

Resultant charges after adding the
-2C be (-2+2) = 0 and (-2 +6) = +4C
F=kQ1Q2r2=k×0×4r2=0

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