Resistance, Ohmic


Resistance, Ohmic

 

an old term for the resistance presented to a direct current by an electric circuit. The Ohmic resistance is the limiting value of the AC, or effective, resistance as ω → 0, where ω is the frequency of an alternating current. The term “Ohmic resistance” emphasizes the fulfillment of Ohm’s law—that is, the existence of a linear relationship between the current and voltage.