Question

Two identical metal spheres A and B carry same charge q. When the two spheres are at distance r from each other, the force acting between them is F. Another identical sphere C is first brought in contact with A, then it is touched to sphere B and then separated from it. Now the force acting between A and B at the same distance is ______(A) F
(B) 2F
(C) 3F/8
(D) F/4

Answer 1

refer to attachment..

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