Two equally charged, identical metal spheres A and B repel each other – McqOptions

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1.	Two equally charged, identical metal spheres A and B repel each other with a force 'F'. The spheres are kept fixed with a distance 'r' between them. A third identical, but uncharged sphere C is brought in contact with A and then placed at the mid-point of the line joining A and B. The magnitude of the net electric force on C is [UPSEAT 2004; DCE 2005]
A.	F
B.	3F/4
C.	F/2
D.	F/4
Answer» B. 3F/4

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