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Home ‣ Electrical Engineering ‣ RC Circuits See What Others Are Saying!
  • Question

  • Apparent power is expressed in watts.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • False 

    • More questions

    • 1. When the frequency of the voltage applied to a series RL circuit is decreased, the impedance

    • Options
    • A. decreases
    • B. increases
    • C. does not change
    • D. cannot be determined without values
      • Discuss
    • 2. A single 6 V pulse with a width of 600 µs is applied to an integrator consisting of a 150 kΩ resistor and a 0.002 µF capacitor. To what voltage will the capacitor charge?

    • Options
    • A. 0 V
    • B. 3.78 V
    • C. 5.16 V
    • D. 6 V
      • Discuss
    • 3. The Thevenin equivalent voltage (VTH) is the short-circuit voltage between two terminals in a circuit.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. In order to get maximum power transfer from a capacitive source, the load must have an impedance that is the complex conjugate of the source impedance.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. A switch, a 220 Ω resistor, and a 60 mH inductor are in series across a 20 V battery. What is the current through the inductor two time constants after the switch is closed?

    • Options
    • A. 91 mA
    • B. 78 mA
    • C. 57 mA
    • D. 400 mA
      • Discuss
    • 6. In a Y-connected circuit, the magnitude of each line current is

    • Options
    • A. one-third the phase current
    • B. three times the corresponding phase current
    • C. equal to the corresponding phase current
    • D. zero
      • Discuss
    • 7. A sine wave voltage is applied across an inductor. When the frequency of the voltage is decreased, the current

    • Options
    • A. is increased
    • B. is decreased
    • C. does not change
    • D. momentarily goes to zero
      • Discuss
    • 8. A battery is one type of power supply that converts chemical energy into electrical energy.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. The term choke is more commonly used in connection with an inductor used to block off high frequencies.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. The unit of electrical charge is the

    • Options
    • A. volt
    • B. ampere
    • C. joule
    • D. coulomb
      • Discuss

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