Q.
Figure shows a closed surface which intersects a conducting sphere. If a positive charge is placed at the point P, the flux of the electric field through the closed surface
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a
will remain zero
b
will become positive
c
will become negative
d
will become undefined
answer is B.
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Detailed Solution
The positive & negative charges developed on different parts of conducting sphere due to induction. Hence the flux through the closed surface is positive.
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