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Home ‣ Electronics ‣ RL Circuits Comments
  • Question

  • 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

  • Correct Answer
  • 141.4 Ω 

    • RL Circuits problems

    Search Results

    • 1. 

      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
    • 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. 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
    • 4. 

      What is the dc voltage of the waveform in the given circuit?


    • Options
    • A. 2 V
    • B. 4 V
    • C. 6 V
    • D. 8 V
      • Discuss
    • 5. 

      What type of waveform is shown in the given circuit?


    • Options
    • A. Sine wave
    • B. Square wave
    • C. Triangle wave
    • D. Sawtooth wave
      • Discuss
    • 6. 

      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
    • 7. 

      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
    • 8. 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
    • 9. 

      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
    • 10. 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

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