Two insulated charged copper spheres A and B of identical size have charges qA and qB respectively. A third sphere C of the same size but uncharged is brought in contact with the first and then in contact with the second and finally removed from both. What are the new charges on A and B1 [Chennai 2019, Foreign 2011]
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Explanation
Firstly the uncharged C is taken to A then average charges will be
Qa= qa/2, Qc- qa/2
Now charge C is taken to charge B..average charge will be
Qb= qa+ 2qb/4
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