Question

A 44 mH inductor is connected to 220 V, 50 Hz ac supply. Determine the rms value of the current in the circuit.

Answer 1

Inductance of inductor, L = 44 mH = 44 × 10⁻³ H

Supply voltage, V = 220 V

Frequency, ν = 50 Hz

Angular frequency, ω=

Inductive reactance, X_L = ω L

Rms value of current is given as:

Hence, the rms value of current in the circuit is 15.92 A.