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  • Question

  • What is the capacitive reactance if I = 1 amp, V = 2 volts, C = 5 F, and frequency = 10 Hz?


  • Options
  • A. 0.2 Ω
  • B. 0.5 Ω
  • C. 0.02 Ω
  • D. 0.003 Ω

  • Correct Answer
  • 0.003 Ω 

    • Capacitors problems

    Search Results

    • 1. What circuit has the following frequency response?


    • Options
    • A. bandpass filter
    • B. high-pass filter
    • C. low-pass filter
    • D. integrator
      • Discuss
    • 2. Select the equation below that represents the relationship between charge, capacitance, and voltage for a capacitor.

    • Options
    • A. Q = CV
    • B. C = QV
    • C.
    • D. V = IR
      • Discuss
    • 3. Which of the following is the reference vector for parallel RC circuits?

    • Options
    • A. R
    • B. I
    • C. C
    • D. V
      • Discuss
    • 4. What is the phase shift between the voltage across the resistor and the voltage from the source?


    • Options
    • A. VR leads VS by 17°
    • B. VR leads VS by 73°
    • C. VR lags VS by 73°
    • D. VR lags VS by 17°
      • Discuss
    • 5. If a capacitor is placed across a 20 V source, what will be the amount of charge after 5 tc?

    • Options
    • A. 5.0 V
    • B. 12.8 V
    • C. 13.5 V
    • D. 20 V
      • Discuss
    • 6. 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
    • 7. 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
    • 8. 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
    • 9. 

      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
    • 10. 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

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