Three identical metallic uncharged spheres A, B and C of radius a are kept on the corners of an equilateral triangle of side `d (d gt gt a)`. A fourth sphere (radius a) which has charge Q touches A and is then removed to a position for away. B is earthed and then the earth connection is removed. c is then earthed. The charge on C isA. `(Qa)/(2d) ((2d-a)/(2d))`B. `(Qa)/(2d) ((2d-a)/(d))`C. `(Qa)/(2d) ((a-d)/d)`D. `(2Qa)/(d) ((d-a)/(2d))`

Three identical metallic uncharged spheres A, B and C of radius a are

1.	Three identical metallic uncharged spheres A, B and C of radius a are kept on the corners of an equilateral triangle of side `d (d gt gt a)`. A fourth sphere (radius a) which has charge Q touches A and is then removed to a position for away. B is earthed and then the earth connection is removed. c is then earthed. The charge on C isA. `(Qa)/(2d) ((2d-a)/(2d))`B. `(Qa)/(2d) ((2d-a)/(d))`C. `(Qa)/(2d) ((a-d)/d)`D. `(2Qa)/(d) ((d-a)/(2d))`
Answer» Correct Answer - C

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