Question
In a certain charge distribution, all points having zero potential can be joined by a circle S. Points inside S have positive potential and points outside S have negative potential. A positive charge, which is free to move, is placed inside S
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(a) It will remain in equilibrium |
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(b) It can move inside S, but it cannot cross S |
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(c) It must cross S at some time |
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(d) It may move, but will ultimately return to its starting point |
