Calculate the inductance of a coil connected across a 110 V, 60 Hz power source, given that the current flowing through the circuit is 5 A.

Solution:

The inductive reactance, X_L = 2πfL = V/I, from which we get

L = V/ 2πfI = 110/(2 x 3.14 x 60 x 5) = 0.584 H.