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MHT CET Physics question

PhysicsElectric Charges and FieldsMHT CET

Initially sphere A has charge of C & sphere B has charge C. The sphere A has twice the radius of sphere B. If the sphere touches, then what is the charge on the sphere B?

Answer: (A)

Solution

Total charge C is shared in the ratio of radii (equal potentials), A : B = 2 : 1, so B gets C

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Question ID VK-075295