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  • Question
  • Calculate the magnitude of the impedance in the given circuit. 24.1 M? 10 M? 26.1 M? 0 ?

    Calculate the magnitude of the impedance in the given circuit.


  • Options
  • A. 24.1 MΩ
  • B. 10 MΩ
  • C. 26.1 MΩ
  • D. 0 Ω

  • Correct Answer
  • 26.1 MΩ 


  • RC Circuits problems


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    • 1. In a 20 Vac series RC circuit, if 20 V is read across the resistor and 40 V is measured across the capacitor, the applied voltage is

    • Options
    • A. 45 Vac
    • B. 50 Vac
    • C. 60 Vac
    • D. 65 Vac
    • Discuss
    • 2. 

      What is the phase angle in the given circuit?


    • Options
    • A. 14.95°
    • B. 36.88°
    • C. 0°
    • D. 90°
    • Discuss
    • 3. 

      Which circuit is represented by the frequency response curve in the given figure?


    • Options
    • A. High-pass filter
    • B. Low-pass filter
    • C. Band-pass filter
    • D. Band-stop filter


    • Discuss
    • 4. 

      What is the voltage drop across R1 in the given circuit?


    • Options
    • A. 10 V
    • B. 4.80 V
    • C. 4.00 V
    • D. 5.80 V
    • Discuss
    • 5. As frequency increases

    • Options
    • A. both series and parallel RC impedance decrease
    • B. series RC impedance decreases and parallel RC impedance increases
    • C. series RC impedance increases and parallel RC impedance decreases
    • D. both series and parallel RC impedance increase
    • Discuss
    • 6. 

      If the frequency increases in the given circuit, how would the total current change?


    • Options
    • A. The total current would increase.
    • B. The total current would decrease.
    • C. The total current would remain the same.
    • D. More information is needed in order to predict how the total current would change.
    • Discuss
    • 7. Power that is measured in volt-amperes is called

    • Options
    • A. impedance power
    • B. reactive power
    • C. true power
    • D. apparent power
    • Discuss
    • 8. 

      What is the current through XC1 in the given circuit?


    • Options
    • A. 32.2 mA
    • B. 16 mA
    • C. 12 mA
    • D. 48 mA
    • Discuss
    • 9. Which statement about a series RC circuit is true?

    • Options
    • A. The capacitor's voltage drop is in phase with the resistor's voltage drop.
    • B. The current leads the source voltage.
    • C. The current lags the source voltage.
    • D. The resistor voltage lags the current.
    • Discuss
    • 10. 

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


    • Options
    • A. 500 µA
    • B. 10 mA
    • C. 250 mA
    • D. 1.25 A
    • Discuss


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