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Questions  

Two conducting spheres of radii r1 and r2 are equally charged. The ratio of their potentials is 

a
r12/r22
b
r22/r12
c
r1/r2
d
r2/r1

detailed solution

Correct option is D

V1=14πε0×qr1  and  V2=14πε0×qr2∴ V1V2=I2r1

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