If a charged spherical conductor of radius 10 cm has potential V at a point distant 5 cm from its centre, then the potential at a point distant 15 cm from the centre will be
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a
13·V
b
23V
c
32V
d
3 V
answer is B.
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Detailed Solution
Potential inside the sphere will be same as that on its surface i.e., V=Vsurface =q10 statvolt Also Vout =q15 statvolt ∴VoutV=23⇒Vout=23 V
If a charged spherical conductor of radius 10 cm has potential V at a point distant 5 cm from its centre, then the potential at a point distant 15 cm from the centre will be