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Q.

A hollow metal sphere of radius 5cm is charged such that the potential on its surface is 10V. The potential at a distance of 2cm from the centre of the sphere  

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a

Zero

b

10 V

c

4 V

d

10/3 V

answer is B.

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Detailed Solution

At a point inside the sphere, the potential is same everywhere and is equal to that of the surface.  

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A hollow metal sphere of radius 5cm is charged such that the potential on its surface is 10V. The potential at a distance of 2cm from the centre of the sphere