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  • Question

  • 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.

  • Correct Answer
  • An increase in frequency causes an increase in phase lag. 

    • RL Circuits problems

    Search Results

    • 1. 

      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
    • 2. 

      What type of waveform is shown in the given circuit?


    • Options
    • A. Sine wave
    • B. Square wave
    • C. Triangle wave
    • D. Sawtooth wave
      • Discuss
    • 3. 

      Which point is the trailing edge of the repetitive pulse waveform in the given circuit?


    • Options
    • A. Point A
    • B. Point B
    • C. Point C
    • D. Point D
      • Discuss
    • 4. What is the instantaneous peak voltage at 250° on a 6 V peak sine wave?

    • Options
    • A. +5.64 V
    • B. ?5.64 V
    • C. +26.13 V
    • D. ?26.13 V
      • Discuss
    • 5. What is the fourth harmonic of a fundamental frequency of 400 Hz?

    • Options
    • A. 100 Hz
    • B. 4 kHz
    • C. 4 Hz
    • D. 1.6 kHz
      • Discuss
    • 6. 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
    • 7. 

      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
    • 8. 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
    • 9. 

      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
    • 10. 

      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

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