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

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

Supply voltage, V = 220 V,

Frequency, ν = 50 Hz,

Angular frequency, ω = 2πν

Inductive reactance, X_L= ωL = 2πνL = 2π x 50 x 44 x 10^-3 Ω

rms value of current is given as:

I = V/X_L =220/(2π x 50 x 44 x 10^-3) =15.92 A

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