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Home Electronics RLC Circuits and Resonance Comments

  • Question
  • When inductive and capacitive reactance are present in the same series circuit, the magnitude of the total reactance is equal to the sum of the magnitudes of the individual reactances.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • False 


  • RLC Circuits and Resonance problems


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    • 1. The resonant frequency fo is 19 kHz.


    • Options
    • A. True
    • B. False
    • Discuss
    • 2. ___ capacitors have the highest values of capacitance.

    • Options
    • A. Electrolytic
    • B. Ceramic
    • C. Plastic-film
    • D. Mica
    • Discuss
    • 3. If a 5 V, 60 Hz voltage is applied to a 4.7 µF capacitor, the circuit current will be ______ .

    • Options
    • A. 0.886 mA
    • B. 8.86 mA
    • C. 8.86 µA
    • D. 88.6 µA
    • Discuss
    • 4. A ___ capacitor allows ac signals to pass while blocking dc signals.

    • Options
    • A. filter
    • B. bypass
    • C. decoupling
    • D. coupling
    • Discuss
    • 5. The basic capacitor is made up of ___ that separates two conductive plates.

    • Options
    • A. a conductor
    • B. a spacer
    • C. a dielectric
    • D. an electrode
    • Discuss
    • 6. The quality factor of a parallel circuit at resonance is VC/VS or VL/VS.

    • Options
    • A. True
    • B. False
    • Discuss
    • 7. The less selective a filter is, the steeper the slope of its curves at the cutoff frequencies.

    • Options
    • A. True
    • B. False
    • Discuss
    • 8. In a series RLC circuit, at above resonance the circuit is more capacitive than it is inductive.

    • Options
    • A. True
    • B. False
    • Discuss
    • 9. The bandwidth of a filter is the range of frequencies between the half-power frequencies.

    • Options
    • A. True
    • B. False
    • Discuss
    • 10. 

      With the frequency given, the circuit in the given circuit is operating above resonance.


    • Options
    • A. True
    • B. False
    • Discuss


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