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Home Electronics Time Response of Reactive Circuits Comments

  • Question
  • Which of the following is true for a capacitor?


  • Options
  • A. A capacitor acts like a short to instantaneous changes in current.
  • B. A capacitor's voltage cannot change instantaneously.
  • C. A capacitor acts like an open to dc.
  • D. All of the above

  • Correct Answer
  • All of the above 


  • Time Response of Reactive Circuits problems


    Search Results


    • 1. 

      The given circuit is an


    • Options
    • A. RL integrator
    • B. RC differentiator
    • C. RL differentiator
    • D. RC integrator
    • Discuss
    • 2. 

      What is the voltage across the inductor in the given circuit on the falling edge of the first input pulse?


    • Options
    • A. ?0.2 V
    • B. 0.2 V
    • C. ?9.8 V
    • D. 9.8 V
    • Discuss
    • 3. What is a circuit that produces short-duration spikes?

    • Options
    • A. A trigger pulse generator
    • B. An RL integrator
    • C. A timing circuit
    • D. A pulse waveform-to-dc converter
    • Discuss
    • 4. In a repetitive-pulse RC integrator circuit, what would the steady-state voltage equal at the end of the fifth pulse? Assume a Vin of 20 V.

    • Options
    • A. 1.46 V
    • B. 14.62 V
    • C. 20 V
    • D. 0 V
    • Discuss
    • 5. What is the true power of a 24 Vac parallel RL circuit when R = 45 Ω and XL = 1100 Ω?

    • Options
    • A. 313.45 W
    • B. 12.8 W
    • C. 44.96 W
    • D. 22.3 W
    • Discuss
    • 6. If the capacitor in an RC integrator shorts, the output

    • Options
    • A. is at ground
    • B. would measure the same as the input
    • C. would measure zero volts
    • D. None of the above
    • Discuss
    • 7. 

      What voltage will the capacitor charge up to in the given circuit for the single input pulse shown?


    • Options
    • A. 3.15 V
    • B. 4.3 V
    • C. 4.75 V
    • D. 4.9 V
    • Discuss
    • 8. 

      In the given circuit, what must the pulse width and time between pulses be to allow the capacitor to completely charge by the end of each pulse and to completely discharge between each pulse?


    • Options
    • A. 940 µs
    • B. 2.82 ms
    • C. 3.76 ms
    • D. 4.7 ms
    • Discuss
    • 9. If a periodic pulse waveform is applied to an RC differentiating circuit, which two conditions are possible?

    • Options
    • A. tw ≥ 5Τ or tw > 5Τ
    • B. tw = 5Τ or tw > 5Τ
    • C. tw ≤ 5Τ or tw < 5Τ
    • D. tw ≥ 5Τ or tw < 5Τ
    • Discuss
    • 10. 

      How long will it take the capacitor in the given circuit to discharge?


    • Options
    • A. 16.4 µs
    • B. 32.8 µs
    • C. 65.6 µs
    • D. 82 µs
    • Discuss


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