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  • Question
  • What is the phase shift between the voltage across the resistor and the voltage from the source?

    What is the phase shift between the voltage across the resistor and the voltage from the source? VR


  • 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°

  • Correct Answer
  • VR leads VS by 73° 


  • Capacitors problems


    Search Results


    • 1. 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
    • 2. A practical capacitor

    • Options
    • A. is a short to dc
    • B. looks like a capacitor in parallel with a resistor
    • C. is an open to ac
    • D. stores energy in a magnetic field
    • Discuss
    • 3. What is the value of a capacitor labeled 102?

    • Options
    • A. 10,000 pF
    • B. 1000 pF
    • C. 1000 µF
    • D. 10,000 µF
    • Discuss
    • 4. As a capacitor is being charged, current flowing into the capacitor will:

    • Options
    • A. increase
    • B. decrease
    • C. remain the same
    • D. cannot tell
    • Discuss
    • 5. An 8 V power source is charging a capacitor. How many volts will be across the capacitor at the second time constant?

    • Options
    • A. 1 volt
    • B. 3 volts
    • C. 5 volts
    • D. 7 volts
    • Discuss
    • 6. Which of the following is the reference vector for parallel RC circuits?

    • Options
    • A. R
    • B. I
    • C. C
    • D. V
    • Discuss
    • 7. 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
    • 8. What circuit has the following frequency response?


    • Options
    • A. bandpass filter
    • B. high-pass filter
    • C. low-pass filter
    • D. integrator
    • Discuss
    • 9. 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
    • Discuss
    • 10. 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


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