engineering recuitment GATE IN Test Series 2023-24 Mock Test Network Theory Sinusoidal Steady State Analysis Sinusoidal Response of Series RL Circuit
An industrial coil is modeled as a series combination of an inductance L and resistance R, as shown in figure. Since an ac voltmeter measures only the magnitude of a sinusoid, the following measurements are taken at 60 Hz when the circuit operates in the steady state:
|VS| = 145 V, |V1| = 50 V, |V0| = 110 V
Which of the following results is/are true?
1
The power factor of the circuit is 0.646 lagging
2
The value of resistance R is 102.8 Ω
3
The value of inductance is 454.6 mH
4
The value of voltage across inductor is 89.28 V