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Home ‣ Electronics ‣ RLC Circuits and Resonance Comments
  • Question

  • 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

  • Correct Answer
  • 70.7 

    • RLC Circuits and Resonance problems

    Search Results

    • 1. 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
    • 2. 

      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
    • 3. How much current will flow in a series RLC circuit when VT = 100 V, XL = 160 Ω, XC = 80 Ω, and R = 60 Ω?

    • Options
    • A. 1 A
    • B. 1 mA
    • C. 6.28 A
    • D. 10 A
      • Discuss
    • 4. When a parallel circuit resonates it is said to:

    • Options
    • A. flywheel
    • B. oscillate
    • C. both of the above
    • D. none of the above
      • Discuss
    • 5. What is the range between f1 and f2 of an RLC circuit that resonates at 150 kHz and has a Q of 30?

    • Options
    • A. 100.0 kHz to 155.0 kHz
    • B. 147.5 kHz to 152.5 kHz
    • C. 4500 kHz to 295.5 kHz
    • D. 149,970 Hz to 150,030 Hz
      • Discuss
    • 6. What is the quality factor?


    • Options
    • A. 999
    • B. 223
    • C. 2.2
    • D. 0.99
      • Discuss
    • 7. What is the total current?


    • Options
    • A. 15.6 mA
    • B. 17.8 mA
    • C. 21.9 mA
    • D. 26.0 mA
      • Discuss
    • 8. 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
      • Discuss
    • 9. 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
    • 10. 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

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