Question 1

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

Accepted Answer

This is true. An RC integrator circuit consists of a resistor and a capacitor connected in series. When an input signal is applied, the capacitor charges or discharges until it reaches the same voltage as the input signal. The output of the circuit is the voltage drop across the capacitor, which has been integrated over time.

Question 2

What is VC at the end of the input pulse to an RC integrator if the input pulse is 15 V and the pulse width equals one time constant?
A)9.48 V
B)13.0 V
C)14.25 V
D)14.7 V

Accepted Answer

The voltage across the capacitor (VC) in an RC integrator after one time constant is approximately 63.2% of the input voltage. Therefore, VC = 0.632 * 15 V = 9.48 V.

Question 3

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

Accepted Answer

In an RC integrating circuit, the capacitor is used to integrate the input signal, and the output is taken across the capacitor.

Question 4

An open inductor in an RL differentiator will cause the output to resemble the input.

Accepted Answer

An open inductor in an RL differentiator circuit means there is no inductance to oppose changes in current, effectively making the circuit behave like a simple resistor, causing the output to follow the input signal.

Question 5

When the input pulse width to an RC integrator is much less than  the output approaches the
shape of the input.

Accepted Answer

The answer of When the input pulse width to an...

Question 6

An RC integrating circuit is a basic high-pass filter with a pulse applied to it.

Accepted Answer

An RC integrating circuit is a basic low-pass filter, not a high-pass filter. It allows low-frequency signals to pass while attenuating high-frequency signals.

Question 7

The output of an RC differentiating circuit is taken across the resistor.

Accepted Answer

In an RC differentiating circuit, the output is taken across the capacitor, not the resistor.

Question 8

The output from an RL integrator can look exactly the same as the output from an RC integrator.

Accepted Answer

The output waveform of an RL integrator can look similar to that of an RC integrator, but the main difference is in the time constant (RC or RL) which determines the rate of change of output waveform. Additionally, RL integrators may exhibit more overshoot and ringing compared to RC integrators due to the inductive nature of the circuit.

Question 9

How long will it take a  capacitor to completely charge through a  resistor?
A)0.264 s
B)132 s
C)2.64 s
D)13.2 s

Accepted Answer

The answer of How long will it take a ...

Question 10

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

Accepted Answer

An RL integrator is a circuit that integrates the input signal over time, and when a pulse is applied, it acts as a low-pass filter, smoothing out rapid changes in the input signal.

Question 11

LC and RC integrators, with respect to input and output, perform exactly the same.

Accepted Answer

LC and RC integrators are both low-pass filters, meaning that they allow low-frequency signals to pass through while attenuating high-frequency signals. The input to both types of integrators is a voltage, and the output is a current. The output of an LC integrator is proportional to the integral of the input voltage, while the output of an RC integrator is proportional to the integral of the input current.

Question 12

In an RC integrator, as the time constant gets longer, the maximum capacitor voltage gets smaller.

Accepted Answer

As the time constant (RC) gets longer, the capacitor takes longer to charge and therefore reaches a lower maximum voltage. This is because the voltage across the capacitor increases exponentially as it charges, but slows down as it approaches the supply voltage. A longer time constant means the capacitor has more time to approach the supply voltage, resulting in a smaller maximum voltage.

Question 13

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

Accepted Answer

The answer of In an RL integrating circuit, the output...

Question 14

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

Accepted Answer

An RC differentiator with an open capacitor will not pass any signal, so the output will be zero regardless of the input.

Question 15

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

The output of an LC integrator is not constant during the peak of a pulse input because the inductor and capacitor continue to respond to changes in current and voltage, causing the output to vary.

Question 16

It takes a capacitor 5 time constants to nearly reach full charge.

Accepted Answer

This statement is true. It takes approximately 5 time constants for a capacitor to reach 99% of its full charge.

Question 17

What is one time constant in an integrating circuit if a  resistor is in series with a  capacitor?
A)0.47 ms
B)4.7 s
C) 
D)

Accepted Answer

The answer of What is one time constant in an...

Question 18

How long will it take a  capacitor to completely discharge through a  resistor?
A)0.47 ms
B)2.35 ms
C)5 s
D)0.18 ms

Accepted Answer

The answer of How long will it take a ...

Question 19

What is one time constant in an integrating circuit if a  resistor is in series with a  capacitor?
A)0.047 ms
B)0.47 ms
C)0.47 s
D)

Accepted Answer

The answer of What is one time constant in an...

Question 20

The output of a differentiator circuit will reach the same maximum and minimum levels as the
input as long as the time constant of the circuit is less than the width of the input pulse.

Accepted Answer

A differentiator circuit outputs the rate of change of the input signal, not the same amplitude levels. The output depends on the rate of change of the input, not its amplitude.

Quiz 15: RC Circuits

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

What is VC at the end of the input pulse to an RC integrator if the input pulse is 15 V and the pulse width equals one time constant?

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

An open inductor in an RL differentiator will cause the output to resemble the input.

When the input pulse width to an RC integrator is much less than the output approaches the shape of the input.

An RC integrating circuit is a basic high-pass filter with a pulse applied to it.

The output of an RC differentiating circuit is taken across the resistor.

The output from an RL integrator can look exactly the same as the output from an RC integrator.

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

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

LC and RC integrators, with respect to input and output, perform exactly the same.

In an RC integrator, as the time constant gets longer, the maximum capacitor voltage gets smaller.

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

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

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

It takes a capacitor 5 time constants to nearly reach full charge.

What is one time constant in an integrating circuit if a resistor is in series with a capacitor?

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

What is one time constant in an integrating circuit if a resistor is in series with a capacitor?

The output of a differentiator circuit will reach the same maximum and minimum levels as the input as long as the time constant of the circuit is less than the width of the input pulse.