Question 1

If an RC integrator uses a   capacitor, a 1   resistor and a square wave input with a frequency of 200 kHz, its approximate output is ________.

Accepted Answer

A) a square wave with a frequency of 100 kHz 
B) a near dc voltage of about half the peak square wave voltage 
C) 0 V 
D) a square wave with a frequency of 200 kHz 
A) a square wave with a frequency of 100 kHz 
B) a near dc voltage of about half the peak square wave voltage 
C) 0 V 
D) a square wave with a frequency of 200 kHz B

Question 2

The output of an RC integrator is the capacitorʹs voltage drop.

Accepted Answer

A) True 
 B)False  True

Question 3

Since voltage is constant during the peak of a pulse input, the output of an LC integrator is
constant during this time as well.

Accepted Answer

A) True 
 B)False  False

Question 4

If the input pulse to an RC differentiator is very short compared to the circuitʹs time constant, the differentiatorʹs output is ________.

Accepted Answer

A) a dc value of about half the peak input voltage 
B) a square wave very similar to the input voltage 
C) zero volts 
D) a dc voltage equal to the peak input voltage 
A) a dc value of about half the peak input voltage 
B) a square wave very similar to the input voltage 
C) zero volts 
D) a dc voltage equal to the peak input voltage

Question 5

An RL integrator is a basic RL low-pass filter with a pulse applied to it.

Accepted Answer

A) True 
 B)False

Question 6

What is the output voltage at the end of the input pulse to an RC integrator if the resistance is 12 k Ω, the capacitance is   and the input is a 50 V, 1 s pulse?

Accepted Answer

A) 50 V 
B) 43.25 V 
C) 31.6 V 
D) 47.5 V 
A) 50 V 
B) 43.25 V 
C) 31.6 V 
D) 47.5 V

Question 7

What is output voltage at the end of the input pulse to an RL integrator if the resistance is   the inductor is 2 H and the input is a 12 V, 0.0909 ms pulse?

Accepted Answer

A) 11.8 V 
B) 10.4 V 
C) 7.59 V 
D) 11.4 V 
A) 11.8 V 
B) 10.4 V 
C) 7.59 V 
D) 11.4 V

Question 8

The output from an RC differentiator resembles the input if ________.

Accepted Answer

A)    is less than the pulse width 
B)    is equal to the pulse width 
C)    is much less than the pulse width 
D)    is much larger that the pulse width 
A)    is less than the pulse width 
B)    is equal to the pulse width 
C)    is much less than the pulse width 
D)    is much larger that the pulse width

Question 9

Pulse width (tW) is defined as:

Accepted Answer

A) the time interval between identical points on the pulse. 
B) the time interval between changes in the pulse. 
C) the time interval between opposite points on the pulse. 
D) all of these. 
A) the time interval between identical points on the pulse. 
B) the time interval between changes in the pulse. 
C) the time interval between opposite points on the pulse. 
D) all of these.

Question 10

What is the output voltage from an RL integrator that uses a 10 mH inductor, a   resistor and a 16 V, 1 ms input pulse?

Accepted Answer

A) 16.3 V 
B) 13.8 V 
C) 10.1 V 
D) 15.2 V 
A) 16.3 V 
B) 13.8 V 
C) 10.1 V 
D) 15.2 V

Question 11

A given circuit using an RC integrator to turn on after 20 seconds now takes has been taking much longer to turn on. Now it entirely fails to turn on. What is the problem?

Accepted Answer

A) The resistor has opened. 
B) The capacitor has decreased in value. 
C) The capacitor has increased in value. 
D) The resistor has decreased in value. 
A) The resistor has opened. 
B) The capacitor has decreased in value. 
C) The capacitor has increased in value. 
D) The resistor has decreased in value.

Question 12

How does the RC differentiator output look when   is much longer than the pulse width?

Accepted Answer

A) positive and negative spikes 
B) positive spikes 
C) square waves 
D) negative spikes 
A) positive and negative spikes 
B) positive spikes 
C) square waves 
D) negative spikes

Question 13

A timing circuit makes use of which of the following?

Accepted Answer

A) RC integrator 
B) RC Differentiator 
C) RL differentiator 
D) either A or C 
A) RC integrator 
B) RC Differentiator 
C) RL differentiator 
D) either A or C

Question 14

How long will it take a   capacitor to completely discharge through a   resistor?

Accepted Answer

A) 0.47 ms 
B) 2.35 ms 
C) 5 s 
D) 0.18 ms 
A) 0.47 ms 
B) 2.35 ms 
C) 5 s 
D) 0.18 ms

Question 15

If the input pulse to an RC differentiator is very short compared to the circuitʹs time constant, then the differentiatorʹs output is ________.

Accepted Answer

A) zero volts 
B) a square wave very similar to the input voltage 
C) a dc voltage equal to the peak input voltage 
D) a dc value of about half the peak input voltage 
A) zero volts 
B) a square wave very similar to the input voltage 
C) a dc voltage equal to the peak input voltage 
D) a dc value of about half the peak input voltage

Question 16

RC and RL integrators produce an output voltage that equals the:

Accepted Answer

A) mathematical difference. 
B) mathematical product. 
C) mathematical average. 
D) mathematical sum. 
A) mathematical difference. 
B) mathematical product. 
C) mathematical average. 
D) mathematical sum.

Question 17

What is output voltage at the end of the input pulse to an RC integrator if the resistance is   the capacitance is 100 μF and the input is a 50 V, 10 s pulse?

Accepted Answer

A) 31.6 V 
B) 47.5 V 
C) 43.25 V 
D) 50 V 
A) 31.6 V 
B) 47.5 V 
C) 43.25 V 
D) 50 V

Question 18

The capacitor of an RC integrator charges to ________ if the input is a 10 V pulse with a pulse width equal to one time constant.

Accepted Answer

A) 6.3 V 
B) 5 V 
C) 10 V 
D) 3.7 VC 
A) 6.3 V 
B) 5 V 
C) 10 V 
D) 3.7 VC

Question 19

The output of an RC differentiator with an open capacitor will look like the input.

Accepted Answer

A) True 
 B)False

Question 20

What is VC at the end of the input pulse to an RC integrator if the resistance is   the capacitance is   and the input is a 15 V, 4.7 ms pulse?

Accepted Answer

A) 13.0 V 
B) 14.7 V 
C) 14.3 V 
D) 9.48 V 
A) 13.0 V 
B) 14.7 V 
C) 14.3 V 
D) 9.48 V

Exam 15: RC Circuits

If an RC integrator uses a capacitor, a 1 resistor and a square wave input with a frequency of 200 kHz, its approximate output is ________.

The output of an RC integrator is the capacitorʹs voltage drop.

Since voltage is constant during the peak of a pulse input, the output of an LC integrator is constant during this time as well.

If the input pulse to an RC differentiator is very short compared to the circuitʹs time constant, the differentiatorʹs output is ________.

An RL integrator is a basic RL low-pass filter with a pulse applied to it.

What is the output voltage at the end of the input pulse to an RC integrator if the resistance is 12 k Ω, the capacitance is and the input is a 50 V, 1 s pulse?

What is output voltage at the end of the input pulse to an RL integrator if the resistance is the inductor is 2 H and the input is a 12 V, 0.0909 ms pulse?

The output from an RC differentiator resembles the input if ________.

Pulse width (tW) is defined as:

What is the output voltage from an RL integrator that uses a 10 mH inductor, a resistor and a 16 V, 1 ms input pulse?

A given circuit using an RC integrator to turn on after 20 seconds now takes has been taking much longer to turn on. Now it entirely fails to turn on. What is the problem?

How does the RC differentiator output look when is much longer than the pulse width?

A timing circuit makes use of which of the following?

How long will it take a capacitor to completely discharge through a resistor?

If the input pulse to an RC differentiator is very short compared to the circuitʹs time constant, then the differentiatorʹs output is ________.

RC and RL integrators produce an output voltage that equals the:

What is output voltage at the end of the input pulse to an RC integrator if the resistance is the capacitance is 100 μF and the input is a 50 V, 10 s pulse?

The capacitor of an RC integrator charges to ________ if the input is a 10 V pulse with a pulse width equal to one time constant.

The output of an RC differentiator with an open capacitor will look like the input.

What is VC at the end of the input pulse to an RC integrator if the resistance is the capacitance is and the input is a 15 V, 4.7 ms pulse?

Quantities and Units

Voltage, Current, and Resistance

Ohms Law

Energy and Power

Series Circuits

Parallel Circuits

Series-Parallel Circuits

Circuit Theorems and Conversions

Branch, Loop, and Node Analyses

Magnetism and Electromagnetism

Introduction to Alternating Current and Voltage

Capacitors

Inductors

Transformers

RL Circuits

RlC Circuits and Resonance

Passive Filters

Circuit Theorems in Ac Analysis

Time Response of Reactive Circuits

Three-Phase Systems in Power Applications

Filters