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A positive point charge Q is placed (on ...

A positive point charge Q is placed (on the axis of disc) at a distance of 4 R . Above the centre of a disc of radius R as shown in situation I. the magnitude of electric flux through the disc is `(phi)`. Now a hemis pherical shell of radius R is placed over the disc. such that it forms a closed surface as shown in situation II. The flux through the curved suface in situation II taking direction of area vector along outward normal as positive is

A

Zero

B

`phi`

C

`-phi`

D

`2phi`

Text Solution

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The correct Answer is:
c
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