Physics - Electrostatics Question with Solution | TestHub
A conducting sphere of radius has a charge . It is surrounded by a concentric conducting shell of inner radius and outer radius , which is initially uncharged. If the inner sphere is connected to the outer shell by a conducting wire, what is the final charge on the outer surface of the shell?
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When the inner sphere (radius , charge ) is connected to the outer shell (inner radius , outer radius , initially uncharged) by a conducting wire, they form a single conductor. In electrostatic equilibrium, all charge on a conductor resides on its outermost surface. Therefore, the entire charge will flow from the inner sphere to the outer shell and reside on its outer surface (radius ). The inner sphere and the inner surface of the outer shell will become uncharged.
