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(C) In electrostatic equilibrium,the electric field inside a conductor is zero. According to Gauss's law,any excess charge placed on a conductor must

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Any excess charge resides on the surface of the conductor.

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(C) In electrostatic equilibrium,the electric field inside a conductor is zero. According to Gauss's law,any excess charge placed on a conductor must reside entirely on its surface to minimize mutual repulsion. The electric field just outside the surface of a charged conductor is given by $E = \frac{\sigma}{\varepsilon_0}$,where $\sigma$ is the surface charge density. The electric potential inside a charged conductor is constant and equal to the potential at its surface,not zero. The net electric field is always perpendicular (normal) to the surface of the conductor,not tangential. Therefore,the correct statement is that any excess charge resides on the surface of the conductor.

Under electrostatic condition of a charged conductor,which among the following statements is true?

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