What has the voltage across the resistor decayed to by the end of the pulse in t

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Home ‣ Electronics ‣ Time Response of Reactive Circuits Comments

Question
What has the voltage across the resistor decayed to by the end of the pulse in the given circuit?
Options
A. 0 V
B. 0.75 V
C. 5.55 V
D. 14.25 V

Correct Answer

0.75 V

Time Response of Reactive Circuits problems

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1. An RL integrator and an RC differentiator can act as what types of filters, respectively?
Options
A. low-pass, low-pass
B. low-pass, high-pass
C. high-pass, high-pass
D. high-pass, low-pass

Discuss

Correct Answer: low-pass, high-pass

2.
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

Correct Answer: 82 µs

3. If a periodic pulse waveform is applied to an RC differentiating circuit, which two conditions are possible?
Options
A. t_w ≥ 5Τ or t_w > 5Τ
B. t_w = 5Τ or t_w > 5Τ
C. t_w ≤ 5Τ or t_w < 5Τ
D. t_w ≥ 5Τ or t_w < 5Τ

Discuss

Correct Answer: t_w ≥ 5Τ or t_w < 5Τ

4.
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

Correct Answer: 4.7 ms

5.
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

Correct Answer: 4.3 V

6. A triangular-wave oscillator can consist of an op-amp comparator, followed by a(n)
Options
A. differentiator
B. amplifier
C. integrator
D. multivibrator

Discuss

Correct Answer: integrator

7. A two-pole high-pass active filter would have a roll-off rate of
Options
A. 40 dB/decade
B. ?40 dB/decade
C. 20 dB/decade
D. ?20 dB/decade

Discuss

Correct Answer: ?40 dB/decade

8. Initially, the closed-loop gain (A_cl) of a Wien-bridge oscillator should be
Options
A. A_cl < 3
B. A_cl > 3
C. 0
D. A_cl ≅ 1

Discuss

Correct Answer: A_cl > 3

9. If the input to a comparator is a sine wave, the output is a
Options
A. ramp voltage
B. sine wave
C. rectangular wave
D. sawtooth wave

Discuss

Correct Answer: rectangular wave

10. A zero-level detector is a
Options
A. comparator with a sine-wave output
B. comparator with a trip point referenced to zero
C. peak detector
D. limiter

Discuss

Correct Answer: comparator with a trip point referenced to zero

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What has the voltage across the resistor decayed to by the end of the pulse in the given circuit?

Time Response of Reactive Circuits problems

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