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Question

The ratio of electric field at a point A and at point B due to the uniformly charged spherical conductor as shown, is


A

2:5

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B

1:3

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C

0

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D

1:1

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Solution

The correct option is C

0


We know that net electric field inside a conductor of any shape is zero under electrostatic conditions (In fact that’s why the electrostatic condition is maintained). So electric field at A would be zero. Electric field at B however will be a finite no. i.e. |E|=KQR2

(as the sphere behaves like a point charge when calculating electric field at an outside point).

The ratio will be zero.


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