In a simple resistor circuit, we defined resistance R by

V = I R In a similar fashion, we can write

V _{L}= I X_{L}where V

_{L}is the maximum voltage across the inductor and I is the maximum current through the circuit. X_{L}is called the "inductive reactance"; it is analogous to resistance and is also measured in ohms (). The "inductive reactance", X_{L}, is given by## X

_{L}, the "Inductive Reactance" plays a role very similar to that of R, the resistance. The inductive reactance is a measure of how difficult it is for current to flow. With AC circuits, this depends upon the frequency.(c) Doug Davis, 2002; all rights reserved

Return to Ch 22 Home Page (ToC)