If a periodic pulse waveform has a pulse width and the time between pulses each equal to or greater than five time constants, the capacitor will%!

Partially charge and partially discharge during each period of the input waveform

Partially charge and fully discharge during each period of the input waveform

Fully charge and partially discharge during each period of the input waveform

Fully charge and fully discharge during each period of the input waveform

Partially charge and partially discharge during each period of the input waveform

In an RC differentiator, responding to repetitive pulses, the average value of the output.%!

Is 63 percent of the input voltage

If the RC time constant of an integrator is increased, as the time constant is increased.%!

The capacitor charges more during a pulse and discharges less between pulses

The capacitor charges less during a pulse and discharges more between pulses

The capacitor charges more during a pulse and discharges more between pulses

The capacitor charges less during a pulse and discharges less between pulses

Referring this figure, on the falling edge.%!

The capacitor voltage remains constant

The resistor voltage drops to -5 V and then goes back to zero exponentially

The resistor voltage jumps to -5 V and then goes back to zero exponentially

The capacitor voltage remains constant

The resistor voltage jumps to +5 V and then decreases exponentially to zero

In an RC differentiator, the sum of the capacitor voltage and the resistor voltage at any instant.%!

Is less than the applied voltage but greater than zero

Must be equal to the applied voltage

Is less than the applied voltage but greater than zero

A steady-state condition is reached when%!

The output voltage reaches the input voltage

The output voltage reaches the average value of the input voltage

The output voltage reaches the input voltage

The output voltage reaches approximately 63% of the input voltage

The output voltage reaches the effective value of the input voltage

If the capacitor in an integrator becomes leaky.%!

The time constant will be effectively reduced

The wave-shape of the output voltage across C is altered

The amplitude of the output is reduced

To understand how the output voltage is shaped by a differentiator, you must consider%!

The response to the rising pulse edge

The response between the rising and falling edges

The response to the falling pulse edge

In electronic systems, repetitive-pulse waveforms are encountered.%!

About as often as single pulses

Twice as often as single pulses

With an RL integrator, at the instant of the rising pulse edge,%!

63 percent of the input voltage is across the resistor

All the input voltage is across the resistor

All the input voltage is across the inductor

63 percent of the input voltage is across the resistor

63 percent of the input voltage is across the inductor

__In an RL differentiator, when the input pulse goes from its low level to its high level,__

Voltage across the inductor instantly reaches 63% of input voltage

The inductor prevents a sudden change in voltage

The inductor prevents a sudden change in current

Voltage across the inductor instantly reaches 63% of input voltage

Voltage across the inductor is zero

Referring to the give circuit, the output will.$?

Reach 6 V at the end of the pulse

Decay to zero at the end of the pulse

Reach 6 V at the end of the pulse

Reach 3.78 V at the end of the pulse

Reach 5.16 V at the end of the pulse

In an RC differentiator, the capacitor.

Charges exponentially at a rate depending on the input voltage

Charges exponentially at a rate depending on the RC time constant

Charges exponentially at a rate depending on the input voltage

Charges when the input voltage is decreasing

Charges to approximately one time constant

35 + Mcqs in Time Response Of Reactive Circuits in Electrical Engineering Page 1 McqOptions

1.	In an RL differentiating circuit, the output voltage is taken across the resistor.%!
A.	True
B.	False
Answer» C.

Discussion

2.	In an RC differentiating circuit, the output voltage is taken across the resistor.%!
A.	True
B.	False
Answer» B. False

Discussion

3.	In an RL integrating circuit, the output voltage is taken across the inductor.%!
A.	True
B.	False
Answer» C.

Discussion

4.	If a periodic pulse waveform has a pulse width and the time between pulses each equal to or greater than five time constants, the capacitor will%!
A.	Partially charge and fully discharge during each period of the input waveform
B.	Fully charge and partially discharge during each period of the input waveform
C.	Fully charge and fully discharge during each period of the input waveform
D.	Partially charge and partially discharge during each period of the input waveform
Answer» D. Partially charge and partially discharge during each period of the input waveform

Discussion

5.	In an RC differentiator, responding to repetitive pulses, the average value of the output.%!
A.	Is zero
B.	Is equal to the input voltage
C.	Is 63 percent of the input voltage
D.	Cannot be determined
Answer» B. Is equal to the input voltage

Discussion

6.	If the RC time constant of an integrator is increased, as the time constant is increased.%!
A.	The capacitor charges more during a pulse and discharges less between pulses
B.	The capacitor charges less during a pulse and discharges more between pulses
C.	The capacitor charges more during a pulse and discharges more between pulses
D.	The capacitor charges less during a pulse and discharges less between pulses
Answer» E.

Discussion

7.	In an electric circuit, the reaction of a circuit to a given pulse input is known as the pulse response.%!
A.	True
B.	False
Answer» B. False

Discussion

8.	If the capacitor in an integrator opens, the output has the same voltage as the input.%!
A.	True
B.	False
Answer» B. False

Discussion

9.	In an integrator, when the pulse width of the input is much less than the transient time, the output voltage approaches the shape of the input.%!
A.	True
B.	False
Answer» C.

Discussion

10.	A dc component is the peak value of a pulse waveform.%!
A.	True
B.	False
Answer» C.

Discussion

11.	Referring this circuit, determine the maximum output voltage when a single pulse is applied as shown. The total resistance is 60 ≈í¬©.%!
A.	2.73 V
B.	27.33 V
C.	30 V
D.	2.67 V
Answer» C. 30 V

Discussion

12.	Referring this figure, on the falling edge.%!
A.	The resistor voltage drops to -5 V and then goes back to zero exponentially
B.	The resistor voltage jumps to -5 V and then goes back to zero exponentially
C.	The capacitor voltage remains constant
D.	The resistor voltage jumps to +5 V and then decreases exponentially to zero
Answer» C. The capacitor voltage remains constant

Discussion

13.	The output of an RC integrator is taken across the%!
A.	Diode
B.	Capacitor
C.	Resistor
D.	Source
Answer» C. Resistor

Discussion

14.	Referring to Problem 7, how much will the capacitor charge if the pulse width is increased to 12 ms?%!
A.	2.51 V
B.	25.14 V
C.	4.86 V
D.	12.76 V
Answer» C. 4.86 V

Discussion

15.	In an RC differentiator, the sum of the capacitor voltage and the resistor voltage at any instant.%!
A.	Must be zero
B.	Must be equal to the applied voltage
C.	Is less than the applied voltage but greater than zero
D.	Cannot be determined
Answer» C. Is less than the applied voltage but greater than zero

Discussion

16.	In an RC integrating circuit, the output voltage is taken across the capacitor.%!
A.	True
B.	False
Answer» B. False

Discussion

17.	An integrator consists of a 3.3 k≈í¬© resistor and a 2 ≈í¬∫F capacitor. A single 30 V, 6 ms pulse is applied to the input. How much will the capacitor charge?%!
A.	10.3 V
B.	30 V
C.	12.09 V
D.	17.91 V
Answer» E.

Discussion

18.	A steady-state condition is reached when%!
A.	The output voltage reaches the average value of the input voltage
B.	The output voltage reaches the input voltage
C.	The output voltage reaches approximately 63% of the input voltage
D.	The output voltage reaches the effective value of the input voltage
Answer» B. The output voltage reaches the input voltage

Discussion

19.	Referring to the bellow figure, determine the voltage level that the output will reach during the pulse.%!
A.	0 V
B.	15 V
C.	6.3 V
D.	9.45 V
Answer» E.

Discussion

20.	A single 6 V pulse with a width of 600 ≈í¬∫s is applied to an integrator consisting of a 150 k≈í¬© resistor and a 0.002 ≈í¬∫F capacitor. To what voltage will the capacitor charge?%!
A.	0 V
B.	3.78 V
C.	5.16 V
D.	6 V
Answer» D. 6 V

Discussion

21.	The flat portions of a pulse waveform contain low-frequency components.%!
A.	True
B.	False
Answer» B. False

Discussion

22.	When a 15 V input pulse with a width equal to two time constants is applied to an RC integrator, the capacitor charges to%!
A.	15 V
B.	12.9 V
C.	8.6 V
D.	19.45 V
Answer» C. 8.6 V

Discussion

23.	The rising and falling edges of a pulse waveform contain the higher frequency component.%!
A.	True
B.	False
Answer» B. False

Discussion

24.	If the capacitor in an integrator becomes leaky.%!
A.	The time constant will be effectively reduced
B.	The wave-shape of the output voltage across C is altered
C.	The amplitude of the output is reduced
D.	All of the above
Answer» E.

Discussion

25.	When a 24 V input pulse with a width equal to five time constants is applied to an RC integrator, the capacitor charges to%!
A.	24 V
B.	15.12 V
C.	20.64 V
D.	12 V
Answer» B. 15.12 V

Discussion

26.	An RC differentiator acts as a%!
A.	Low-pass filter
B.	High-pass filter
C.	Band-pass filter
D.	Band-stop filter
Answer» C. Band-pass filter

Discussion

27.	To understand how the output voltage is shaped by a differentiator, you must consider%!
A.	The response to the rising pulse edge
B.	The response between the rising and falling edges
C.	The response to the falling pulse edge
D.	All of the above
Answer» E.

Discussion

28.	In electronic systems, repetitive-pulse waveforms are encountered.%!
A.	More often than single pulses
B.	Less often than single pulses
C.	About as often as single pulses
D.	Twice as often as single pulses
Answer» B. Less often than single pulses

Discussion

29.	When a 12 V input pulse with a width equal to one time constant is applied to an RC integrator, the capacitor charges to.%!
A.	0 V
B.	12 V
C.	6.3 V
D.	7.56 V
Answer» E.

Discussion

30.	With an RL integrator, at the instant of the rising pulse edge,%!
A.	All the input voltage is across the resistor
B.	All the input voltage is across the inductor
C.	63 percent of the input voltage is across the resistor
D.	63 percent of the input voltage is across the inductor
Answer» C. 63 percent of the input voltage is across the resistor

Discussion

31.	/_Referring to Problem 5, how long will it take the capacitor to discharge if the internal resistance of the pulse source is 100 ≈í¬©??
A.	300 ≈í¬∫s
B.	600 ≈í¬∫s
C.	900 ≈í¬∫s
D.	1.5 ms
Answer» E.

Discussion

32.	__In an RL differentiator, when the input pulse goes from its low level to its high level,__
A.	The inductor prevents a sudden change in voltage
B.	The inductor prevents a sudden change in current
C.	Voltage across the inductor instantly reaches 63% of input voltage
D.	Voltage across the inductor is zero
Answer» C. Voltage across the inductor instantly reaches 63% of input voltage

Discussion

33.	Referring to the give circuit, the output will.$?
A.	Decay to zero at the end of the pulse
B.	Reach 6 V at the end of the pulse
C.	Reach 3.78 V at the end of the pulse
D.	Reach 5.16 V at the end of the pulse
Answer» B. Reach 6 V at the end of the pulse

Discussion

34.	What is the highest frequency contained in a pulse that has a rise and fall time equal to 10 microseconds (10 ≈í¬∫s)?$
A.	35 kHz
B.	3.5 kHz
C.	10 kHz
D.	100 kHz
Answer» B. 3.5 kHz

Discussion

35.	In an RC differentiator, the capacitor.
A.	Charges exponentially at a rate depending on the RC time constant
B.	Charges exponentially at a rate depending on the input voltage
C.	Charges when the input voltage is decreasing
D.	Charges to approximately one time constant
Answer» B. Charges exponentially at a rate depending on the input voltage

Discussion

Explore topic-wise MCQs in Electrical Engineering.

In an RL differentiating circuit, the output voltage is taken across the resistor.%!

In an RC differentiating circuit, the output voltage is taken across the resistor.%!

In an RL integrating circuit, the output voltage is taken across the inductor.%!

If a periodic pulse waveform has a pulse width and the time between pulses each equal to or greater than five time constants, the capacitor will%!

In an RC differentiator, responding to repetitive pulses, the average value of the output.%!

If the RC time constant of an integrator is increased, as the time constant is increased.%!

In an electric circuit, the reaction of a circuit to a given pulse input is known as the pulse response.%!

If the capacitor in an integrator opens, the output has the same voltage as the input.%!

In an integrator, when the pulse width of the input is much less than the transient time, the output voltage approaches the shape of the input.%!

A dc component is the peak value of a pulse waveform.%!

Referring this circuit, determine the maximum output voltage when a single pulse is applied as shown. The total resistance is 60 ≈í¬©.%!

Referring this figure, on the falling edge.%!

The output of an RC integrator is taken across the%!

Referring to Problem 7, how much will the capacitor charge if the pulse width is increased to 12 ms?%!

In an RC differentiator, the sum of the capacitor voltage and the resistor voltage at any instant.%!

In an RC integrating circuit, the output voltage is taken across the capacitor.%!

An integrator consists of a 3.3 k≈í¬© resistor and a 2 ≈í¬∫F capacitor. A single 30 V, 6 ms pulse is applied to the input. How much will the capacitor charge?%!

A steady-state condition is reached when%!

Referring to the bellow figure, determine the voltage level that the output will reach during the pulse.%!

A single 6 V pulse with a width of 600 ≈í¬∫s is applied to an integrator consisting of a 150 k≈í¬© resistor and a 0.002 ≈í¬∫F capacitor. To what voltage will the capacitor charge?%!

The flat portions of a pulse waveform contain low-frequency components.%!

When a 15 V input pulse with a width equal to two time constants is applied to an RC integrator, the capacitor charges to%!

The rising and falling edges of a pulse waveform contain the higher frequency component.%!

If the capacitor in an integrator becomes leaky.%!

When a 24 V input pulse with a width equal to five time constants is applied to an RC integrator, the capacitor charges to%!

An RC differentiator acts as a%!

To understand how the output voltage is shaped by a differentiator, you must consider%!

In electronic systems, repetitive-pulse waveforms are encountered.%!

When a 12 V input pulse with a width equal to one time constant is applied to an RC integrator, the capacitor charges to.%!

With an RL integrator, at the instant of the rising pulse edge,%!

*/*_Referring to Problem 5, how long will it take the capacitor to discharge if the internal resistance of the pulse source is 100 ≈í¬©??

__In an RL differentiator, when the input pulse goes from its low level to its high level,__

Referring to the give circuit, the output will.$?

What is the highest frequency contained in a pulse that has a rise and fall time equal to 10 microseconds (10 ≈í¬∫s)?$

In an RC differentiator, the capacitor.

/_Referring to Problem 5, how long will it take the capacitor to discharge if the internal resistance of the pulse source is 100 ≈í¬©??

In an RL differentiator, when the input pulse goes from its low level to its high level,