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 positive point charge q is placed at a distance 2 R from the surface

1.	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
Answer» zero `(1)/(4 pi epsilon_(0)) - (Q)/(9 R^(2))` `(1)/(4 pi epsilon_(0))(q)/(4R^(2))` `(1)/(4 pi epsilon_(0)) (q)/(R^(2))` Answer :B

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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

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