Chemical Forums
Specialty Chemistry Forums => Other Sciences Question Forum => Topic started by: twinklestar1012 on February 10, 2010, 02:55:35 AM
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An outer shell of charge +Q is insulated by a light thread. There is an inner sphere inside which is earthed. The radii of the outer shell and inner sphere are b and a respectively. What is the potential of the inner sphere?
Initially, I thought the potential must be 0 because it is earthed, but when I do the integration (V = dE/ dr), I couldn't get it as 0 ???
and i find it difficult to calculate the amount of induced charge on the inner sphere...
can anyone help me?
thanks!