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 it’s surface