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  • Question

  • The hypotenuse of the right triangle of a vector diagram for R and XC is _______________.


  • Options
  • A. impedance
  • B. current
  • C. voltage
  • D. power

  • Correct Answer
  • impedance 

    • RC Circuits problems

    Search Results

    • 1. In a series RC circuit, the phase difference between the current and the source voltage _____.

    • Options
    • A. depends on the values of R and C
    • B. equals 0°
    • C. equals 90°
    • D. depends on the amplitude of the input voltage
      • Discuss
    • 2. 

      If the given circuit is used as a filter, the cutoff frequency is _____.


    • Options
    • A. 5 kHz
    • B. 14.47 kHz
    • C. less than 5 kHz
    • D. more than 20 kHz


      • Discuss
    • 3. 

      Connecting the oscilloscope as shown in the given figure will _____.


    • Options
    • A. measure the voltage across the source
    • B. measure the voltage across C1, R2, and C2
    • C. short R1
    • D. short C1, R2, and C2
      • Discuss
    • 4. 

      The phase angle in the given circuit equals___.


    • Options
    • A. 90°
    • B. 36.87°
    • C. 0°
    • D. 53.13°
      • Discuss
    • 5. If the frequency increases in a parallel RC circuit, the phase angle decreases.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. ______________ is shuttled back and forth between the source and load.

    • Options
    • A. True power
    • B. Reactive power
    • C. Apparent power
    • D. Impedance power
      • Discuss
    • 7. 

      The magnitude of the impedance in the given circuit equals _____.


    • Options
    • A. 17.14 Ω
    • B. 24 Ω
    • C. 70 Ω
    • D. More information is needed in order to find the impedance.
      • Discuss
    • 8. In a series RC circuit, the phase difference between the capacitor and the resistor voltages ___.

    • Options
    • A. depends on the values of R and C
    • B. equals 0°
    • C. equals 90°
    • D. depends on the value of the input voltage
      • Discuss
    • 9. If a series RC circuit contains a 120 kΩ resistance and a 160 kΩ capacitive reactance, the impedance equals _____.

    • Options
    • A. 280 kΩ
    • B. 120 kΩ
    • C. 160 kΩ
    • D. 200 kΩ
      • Discuss
    • 10. 

      The true power in the given circuit equals ___.


    • Options
    • A. 48.48 mW
    • B. 296.93 mW
    • C. 280.64 mW
    • D. 96.98 mW
      • Discuss

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