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Question

An electric field strength at a far - off point P due to a point charge, +q located at the origin, O is 100 millivolts/metre. The point charge is now enclosed by a perfectly conducting hollow metal sphere with its centre at the origin, O. The electric field strength at the point, P

A
remains unchanged in its magnitude and direction
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B
remains unchanged in its magnitude but reverse in direction
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C
would be that due to a dipole formed by the charge +q at O and -q induced
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D
would be zero
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Solution

The correct option is A remains unchanged in its magnitude and direction
Ans : (a)

The radially outward field is normal to conductor and no induction effects E is same.




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