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Question

A hollow metal sphere of radius 5 cm is charged such that the potential on its surface is 10 V. The potential at the centre of the sphere is 


A
zero
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B
10 V
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C
same as at a point 5cm away from the surface
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D
same as at a point 25cm away from the surface
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Solution

The correct option is B 10 V
Hollow metal sphere = spherical shell
Electric field inside shell = 0
{B} Potential in constant inside thin shell
potential at surface = potential at centre 
=10V.

Physics

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