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A hollow conducting sphere of radius R has a charge ( +Q) . on its surface. What is the electric potential within the sphere at a distance r=R3 from its centre?

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a

Zero

b

14πε0Qr

c

14πε0QR

d

14πε0Qr2

answer is C.

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Detailed Solution

Inside a conducting body, potential is same everywhere and equals to the potential of its surface.

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A hollow conducting sphere of radius R has a charge ( +Q) . on its surface. What is the electric potential within the sphere at a distance r=R3 from its centre?