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songoku
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Homework Statement
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 as shown. A is the inner surface and B is the outer surface of the sphere. Which of the following statements is correct?
a. the charge on A is -q ; that on B is +q
b. the charge on B is -q ; that on A is +q
c. there is no charge on either A or B
d. the charge on A is -q ; there is no charge on B
Homework Equations
The Attempt at a Solution
The charge on A will be negative because the electrons on the sphere will be attracted by the positive charge q. A will be more positive than B because B is grounded (not sure about this). So the answer is d ??
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