Resonance in Series and Parallel Circuits
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Questions and Answers

What is the condition in which the inductive reactance equals the capacitive reactance?

  • Impedance
  • Capacitance
  • Inductance
  • Resonance (correct)
  • What type of circuit is formed when the resonant frequency is fed to a series or parallel circuit?

  • Tuned circuit (correct)
  • Capacitive circuit
  • Inductive circuit
  • Resistive circuit
  • At what frequency do XL and XC equal each other in a series resonant circuit?

  • Cutoff frequency
  • Resonant frequency (correct)
  • Peak frequency
  • Harmonic frequency
  • What happens to the voltage across the capacitor and inductor in a series LCR circuit below the resonant frequency?

    <p>The voltage across the capacitor is larger than the voltage across the inductor</p> Signup and view all the answers

    What is the condition of a circuit when XL equals XC?

    <p>The circuit is resonant</p> Signup and view all the answers

    What type of curves show how XL and XC vary with frequency in a series resonant circuit?

    <p>Impedance curves</p> Signup and view all the answers

    What happens to the inductive reactance in an RL low-pass filter as the frequency increases?

    <p>It increases</p> Signup and view all the answers

    What happens to the voltage across the resistor in an RL low-pass filter as the frequency increases?

    <p>It decreases</p> Signup and view all the answers

    What is the primary difference between an RC low-pass filter and an RL low-pass filter?

    <p>The ease of use and cost</p> Signup and view all the answers

    What is the effect of an RL low-pass filter on higher frequencies?

    <p>It rolls them off</p> Signup and view all the answers

    What determines the impedance of an inductor in an RL low-pass filter?

    <p>The frequency of the signal</p> Signup and view all the answers

    What is the main advantage of using capacitors in RC low-pass filters?

    <p>All of the above</p> Signup and view all the answers

    What is a filter composed of in each case?

    <p>A resistor and a frequency-varying component</p> Signup and view all the answers

    What happens to the output voltage as the supply frequency changes?

    <p>It varies</p> Signup and view all the answers

    What is the effect of an increase in frequency on inductive reactance?

    <p>It increases</p> Signup and view all the answers

    What is the effect of a decrease in frequency on capacitive reactance?

    <p>It increases</p> Signup and view all the answers

    What is the purpose of selecting the appropriate values of resistance and capacitance in a filter?

    <p>To design filters that pass or eliminate desired frequencies</p> Signup and view all the answers

    What type of circuit is affected by the variation of inductive and capacitive reactances with frequency?

    <p>LCR circuit</p> Signup and view all the answers

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