The answer to this question is relatively simple in the DC (“steady current”) case: The impedance is found to be equal to the resistance of the wire, which is given by The more general case of non-ste...The answer to this question is relatively simple in the DC (“steady current”) case: The impedance is found to be equal to the resistance of the wire, which is given by The more general case of non-steady currents in imperfect conductors is complicated by the fact that the current in an imperfect conductor is not uniformly distributed in the wire, but rather is concentrated near the surface and decays exponentially with increasing distance from the surface (this is determined in Section 4.1).
