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Physics, 07.04.2020 04:19 bryanmcmillianjr

A positive point charge q is placed at the center of an uncharged metal sphere insulated from the ground. The outside of the sphere is then grounded. Then the ground wire is removed. A is the inner surface and B is the outer surface.
Which statement is correct?

A. The charge is –q/2 on both A and on B.
B. The charge on A is –q; there is no charge on B.
C. There is no charge on either A or B
D. The charge on A is –q; that on B is +q.
E. The charge on B is –q; that on A is +q.

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