Two identical metallic spheres A and B when placed at certain distance in air repel each other with a force of F. Another identical uncharged sphere C is first placed in contact with A and then in contact with B and finally placed at midpoint between spheres A and B. The force experienced by sphere C will be:
Text Solution
Verified by ExpertsThe correct answer is:
B
Let q A = q B = q
When C is placed in contact with A, charge on A & C will be = 
Now C is placed in contact with B, charge on B & C will be = 
Now,
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