Questions
A sphere of 4cm radius is suspended in a hollow sphere of 6cm radius. The inner sphere is charged to potential 3 e.s.u. and the outer sphere is earthed. The charge on the inner sphere is
detailed solution
Correct option is D
Suppose charge on inner sphere is +Q as shown.Potential on inner sphereV=V1+V2=kQ1r1+kQ2r2=1Q4+1-Q6 ∵k =1, Q1=Q, Q2=-Q ⇒3=Q14−16 ⇒Q=36 e.s.u.Talk to our academic expert!
Similar Questions
1000 small water drops each of radius r and charge q coalesce together to form one spherical drop. The potential of the big drop is larger than that of the smaller drop by a factor of
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