JEE Advanced 2007 Physics question

Consider a neutral conducting sphere. A positive point charge is placed outside the sphere. The net charge on the sphere is then,

(A)negative and distributed uniformly over the surface of the sphere
(B)negative and appears only at the point on the sphere closest to the point charge
(C)negative and distributed non-uniformly over the entire surface of the sphere
(D)zeroCorrect

Answer: (D)

Solution

The external charge only redistributes the free charges of the sphere by induction: negative charge gathers on the near side and an equal positive charge on the far side. No

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Question ID VK-037408