Two insulated charged copper spheres A and B of identical size have charges qA and -3qA respectively. when they are brought in contact with each other and then seperated what are the new charge on them ?
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Answer:
third sphere C of the same size but uncharged is brought in contact with first and then with second and finally ...
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Answer:
(qa-3qa)/2=-2qa/2=-qa
Explanation:
When two spheres (non insulated) of equal size are brought in to contact with each other, the charges in them will try to distribute in a manner that the two spheres will both have equal charges.
In this case here, each of the sphere would have (qA+qB)/2 charges. However, since the spheres are insulated, the two spheres will retain their respective charges.
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