Answer:
(i) The current in the circuit is 2.044 A
(ii) the phase angle is 71.441⁰
(iii) The power loss in the inductor is 154.58 W
Step-by-step explanation:
Given;
inductance, L = 247 mH
resistance, R = 37 Ω
maximum voltage, V₀ = 336 V
frequency, f = 71 Hz
The rms voltage is given as;

The inductive reactance is given as;

The impedance of the A.C circuit is given as;

(i) The current in the circuit is given as;

(ii) the phase angle is given as;

(iii) The power loss in the inductor is given as;
P = IVcosΦ
P = (2.044)(237.586)Cos(71.441⁰)
P = 154.58 W