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A positive point charge q is placed at a...

A positive point charge q is placed at a distance 2 R from the surface of a metallic shell of radius R. the electric field at centre of shell due to indouced charge has magnitude

A

zero

B

`(1)/(4 pi epsilon_(0)) (q)/(9 R^(2))`

C

`(1)/(4 pi epsilon_(0))(q)/(4R^(2))`

D

`(1)/(4 pi epsilon_(0)) (q)/(R^(2))`

Text Solution

Verified by Experts

The correct Answer is:
B
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