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Home ‣ Electronics ‣ RLC Circuits and Resonance Comments
  • Question

  • If the bandwidth of a filter increases:


  • Options
  • A. Q decreases
  • B. the roll-off rate increases
  • C. the half-power frequency decreases
  • D. the center frequency decreases

  • Correct Answer
  • Q decreases 

    • RLC Circuits and Resonance problems

    Search Results

    • 1. What is the total current?


    • Options
    • A. 15.6 mA
    • B. 17.8 mA
    • C. 21.9 mA
    • D. 26.0 mA
      • Discuss
    • 2. What is the quality factor?


    • Options
    • A. 999
    • B. 223
    • C. 2.2
    • D. 0.99
      • Discuss
    • 3. At resonance, the term bandwidth includes all frequencies that allow what percentage of maximum current to flow?

    • Options
    • A. 50
    • B. 62.3
    • C. 70.7
    • D. 95.3
      • Discuss
    • 4. In a parallel RLC circuit, which value may always be used as a vector reference?

    • Options
    • A. current
    • B. reactance
    • C. resistance
    • D. voltage
      • Discuss
    • 5. 

      What is the current through the capacitor in the given circuit?


    • Options
    • A. 3.5 mA
    • B. 5.5 mA
    • C. 9 mA
    • D. 11.4 mA
      • Discuss
    • 6. What would be the power factor for an RLC circuit that acts inductively?

    • Options
    • A. +90 degrees leading
    • B. one
    • C. zero
    • D. ?90 degrees lagging
      • Discuss
    • 7. What is the high cutoff frequency for an RLC circuit that resonates at 2000 Hz and has a bandwidth of 250 Hz?

    • Options
    • A. 2125 Hz
    • B. 2250 Hz
    • C. 1750 Hz
    • D. 8.0 Hz
      • Discuss
    • 8. When XC = XL the circuit:

    • Options
    • A. draws maximum current
    • B. applied voltage is zero
    • C. is at resonance
    • D. draws minimum current
      • Discuss
    • 9. What is the band pass (F1 ? F2) of an RLC filter that resonates at 150 kHz and has a coil Q of 30?

    • Options
    • A. 100.0 kHz to 155.0 kHz
    • B. 147.5 kHz to 152.5 kHz
    • C. 295.5 kHz to 4500 kHz
    • D. 149,970 Hz to 150,030 Hz
      • Discuss
    • 10. What is the applied voltage for a series RLC circuit when IT = 3 mA, VL = 30 V, VC = 18 V, and R = 1000 ohms?

    • Options
    • A. 3.00 V
    • B. 12.37 V
    • C. 34.98 V
    • D. 48.00 V
      • Discuss

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