## RL Circuits MCQ Questions and Answers

Home | Electrical Engineering | RL Circuits**RL Circuits MCQ Questions and Answers:** We provide lots of multiple choice questions and answers related to RL Circuits. here you can learn mcqs questions for electrical engineering.

**1) If the frequency is halved and the resistance is doubled, the impedance of a series RL circuit**

**2) When the frequency is decreased, the impedance of a parallel RL circuit**

**3) A 1.5 kΩ resistor and a coil with a 2.2 kΩ inductive reactance are in series across an 18 V ac source. The power factor is**

**4) When the resistor voltage in a series RL circuit becomes less than the inductor voltage, the phase angle**

**5) A 140 Ω resistor is in parallel with an inductor having 60 Ω inductive reactance. Both components are across a 12 V ac source. The magnitude of the total impedance is**

**6) A 1.2 kΩ resistor is in series with a 15 mH coil across a 10 kHz ac source. The magnitude of the total impedance is**

**7) When the frequency of the voltage applied to a series RL circuit is decreased, the impedance**

**8) A 12 kΩ resistor is in series with a 90 mH coil across an 8 kHz ac source. Current flow in the circuit, expressed in polar form, is I = 0.3 ∠0° mA. The source voltage, expressed in polar form, is**

**9) A 47 Ω resistor is in series with an inductive reactance of 120 Ω across an ac source. The impedance, expressed in polar form, is**

**10) If a load is purely inductive and the reactive power is 12 VAR, the apparent power is**