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RL Circuits problems

  • 1. Which of the following statements is true about a lag network?

  • Options
  • A. An increase in frequency causes an increase in phase lag.
  • B. An increase in frequency causes an increase in the magnitude of the output voltage.
  • C. A decrease in frequency causes an increase in phase lag.
  • D. A decrease in frequency causes a decrease in the magnitude of the output voltage.
    • Discuss
  • 2. As frequency increases

  • Options
  • A. both series and parallel RL impedance decrease
  • B. series RL impedance decreases and parallel RL impedance increases
  • C. series RL impedance increases and parallel RL impedance decreases
  • D. both series and parallel RL impedance increase
    • Discuss
  • 3. Electronics RL Circuits: Calculate the v

    Calculate the voltage dropped across R1 in the given circuit.


  • Options
  • A. 14 V
  • B. 26.8 V
  • C. 28 V
  • D. 0 V
    • Discuss
  • 4. If XL= 100 Ω and R = 100 Ω, then impedance will be

  • Options
  • A. 141.4 Ω
  • B. 14.14 Ω
  • C. 100 Ω
  • D. 200 Ω
    • Discuss
  • 5. Electronics RL Circuits: Calculate the v

    Calculate the voltage dropped across L2 in the given circuit.


  • Options
  • A. 18 V
  • B. 6 V
  • C. 13.5 V
  • D. 0 V
    • Discuss
  • 6. Electronics RL Circuits: Which of the fo

    Which of the following statements is true if R1 opens in the circuit in the given circuit?


  • Options
  • A. IL2 increases.
  • B. ZT decreases.
  • C. VS increases.
  • D. VL1 equals 0 V.
    • Discuss
  • 7. What is the magnitude of the phase angle of a 24 Vac parallel RL circuit when R = 45 Ω and XL = 1100 Ω?

  • Options
  • A. 0.001°
  • B. 2.3°
  • C. 87.6°
  • D. 89.9°
    • Discuss
  • 8. Electronics RL Circuits: Which of the fol

    Which of the following statements is true if the frequency decreases in the circuit in the given circuit?


  • Options
  • A. The phase angle decreases.
  • B. VR decreases.
  • C. IT decreases.
  • D. VS decreases.
    • Discuss
  • 9. What is the magnitude of the phase angle between the source voltage and current when a 100 mH inductor with an inductive reactance of 6 kΩ and a 1 kΩ resistor are in series with a source?

  • Options
  • A. 0.1°
  • B. 9.0°
  • C. 61.0°
  • D. 81.0°
    • Discuss
  • 10. Electronics RL Circuits: Which of the fol

    Which of the following statements is true if the inductor shorts out in the circuit in the given circuit?


  • Options
  • A. Each component drops 5 V.
  • B. The impedance equals 0 Ω.
  • C. The power factor equals 1.
  • D. The phase angle equals 90°.
    • Discuss

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