A conducting sphere of radius 10 cm is charged with 10 µC. Another uncharged sphere of radius 20 cm is allowed to touch it for some time. After that if the sphere are separated, then surface density of charged on the spheres will be in the ratio of:
Text Solution
Verified by ExpertsThe correct answer is:
C
Radius of conducting sphere 
charge on the conducting sphere 
and radius of uncharged sphere 
For a spherical conductor, the density of charge is proportional to its radius. Therefore ratio of density of charges of the spheres will be 
.
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