zero.
A conductor is a material that allows the easy movement of electric charges. When an electric field is applied to a conductor, the free charges within the conductor redistribute themselves in such a way that the electric field inside the conductor becomes zero. This redistribution of charges results in the charges accumulating on the surface of the conductor, creating an equipotential surface inside the conductor.
The electric field inside the conductor cannot exist because if it did, it would exert a force on the free charges, causing them to move, and hence, would no longer be in equilibrium. The charges will continue to redistribute until the electric field inside the conductor is zero.
Therefore, the resultant electric field within a conductor is always zero, as long as the conductor is in electrostatic equilibrium.
The resultant electric field within a conductor is
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