ABSTRACT
In a purely inductive circuit the opposition to the flow of alternating current is called the inductive reactance, XL
XL = VLIL = 2πfL
where f is the supply frequency, in hertz, and L is the inductance, in henry’s. XL is proportional to f as shown
Problem 1. (a) Calculate the reactance of a coil of inductance 0.32H when it is connected to a 50Hz supply. (b) A coil has a reactance of 124 in a circuit with a supply of frequency 5 kHz. Determine the inductance of the coil.
