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Question

A hollow conducting sphere of inner radius R and outer radius 2R is given charge Q as shown in the figure, then the


A
Potential at A and B is same.
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B
Potential at O and B are different.
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C
Potential at O and C are different.
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D
Potential at A , B , C and O is same.
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Solution

The correct option is D Potential at A , B , C and O is same.
Given,

Inner radius of hollow conducting sphere r1=R

Outer radius of hollow conducting sphere r2=2R

From the figure, it is clear that VA=VB as points A and B lie on the same equipotential surface.

So, option (a) is correct answer.

For a hollow conducting sphere, Potential at any point inside the hollow sphere is same as the potential on its surface.

So, we can conclude from this fact that, V0=VC=VA=VB

Hence, options (a) and (d) are the correct alternatives.

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