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  • Question

  • How long would it take the capacitor in the given circuit to completely discharge if the switch was

    How long would it take the capacitor in the given circuit to completely discharge if the switch was in position 2?


  • Options
  • A. 22 ms
  • B. 69 ms
  • C. 345 ms
  • D. 420 ms

  • Correct Answer
  • 420 ms 

    • Capacitors problems

    Search Results

    • 1. If a charged capacitor is disconnected from a circuit, it will:

    • Options
    • A. immediately discharge
    • B. recharge
    • C. remain charged
    • D. leak the charge
      • Discuss
    • 2. What is the circuit's impedance?


    • Options
    • A. 1192 Ω
    • B. 843 Ω
    • C. 723 Ω
    • D. 511 Ω
      • Discuss
    • 3. With a 500 kHz signal source, what would be the value of a capacitor yielding a capacitive reactance of 1 k Ω?

    • Options
    • A. 318 pF
    • B. 2 nF
    • C. 3.18 µF
    • D. 2 F
      • Discuss
    • 4. A source voltage across a capacitor will:

    • Options
    • A. lead the current by 90 degrees
    • B. lead the current by 180 degrees
    • C. lag the current by 90 degrees
    • D. lag the current by 180 degrees
      • Discuss
    • 5. A capacitor stores energy within a dielectric between the conducting plates in the form of:

    • Options
    • A. a magnetic field
    • B. positive voltage
    • C. negative voltage
    • D. an electric field
      • Discuss
    • 6. What is wrong with a leaky capacitor?

    • Options
    • A. It is open.
    • B. It is shorted.
    • C. The dielectric resistance has increased.
    • D. The dielectric resistance has decreased.
      • Discuss
    • 7. A resistor and an output capacitor form a series circuit with a square wave applied. The circuit is:

    • Options
    • A. an integrator
    • B. a differentiator
    • C. a multiplier
    • D. a divider
      • Discuss
    • 8. What do variable capacitors use for dielectric?

    • Options
    • A. ceramic, electrolytic, mica, or paper
    • B. air, ceramic, mica, or plastic
    • C. ceramic, paper, plastic, or mica
    • D. mica, ceramic, plastic, or electrolytic
      • Discuss
    • 9. What is the dc charging/discharging time constant for the circuit?


    • Options
    • A. 294 ps
    • B. 13.5 ms
    • C. 21.25 ms
    • D. 2.16 Gs
      • Discuss
    • 10. Which of the following statements is true?

    • Options
    • A. The voltage to which a capacitor is charged can change instantaneously.
    • B. The current in a capacitive circuit takes time to change.
    • C. A fully charged capacitor appears as a short to dc current.
    • D. An uncharged capacitor appears as a short to an instantaneous change in current.
      • Discuss

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