Q.

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

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a

4 N  (Attractive)

b

4 N (Repulsive)

c

8 N (Repulsive)

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=k Q1Q2r2=k×0×4r2=0
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