Question 1

-Refer to Figure 20-2 (d). If   the voltage gain would be:

Accepted Answer

A) 62.5. 
B) 625. 
C) 6.25. 
D) not enough information. 
A) 62.5. 
B) 625. 
C) 6.25. 
D) not enough information.

Question 2

Which op-amp circuit would be useful to switch to an ʺonʺ condition at a specified voltage?

Accepted Answer

A) instrumentation amp 
B) isolation amplifier 
C) operational transconductance amplifier configured as a Schmitt-trigger 
D) voltage-to-current converter 
A) instrumentation amp 
B) isolation amplifier 
C) operational transconductance amplifier configured as a Schmitt-trigger 
D) voltage-to-current converter

Question 3

The OTA has a ________ input impedance and a ________ CMRR.

Accepted Answer

A) low, low 
B) high, low 
C) low, high 
D) high, high 
A) low, low 
B) high, low 
C) low, high 
D) high, high

Question 4

The output of a peak detector is always:

Accepted Answer

A) equal to the min value of the peak level received since the last reset pulse. 
B) 70.7% of input. 
C) equal to the max value of the peak level received since the last reset pulse. 
D) none of the above. 
A) equal to the min value of the peak level received since the last reset pulse. 
B) 70.7% of input. 
C) equal to the max value of the peak level received since the last reset pulse. 
D) none of the above.

Question 5

-Refer to Figure 20-1. Which of these circuits is known as a constant-current source?

Accepted Answer

A) (a) 
B) (b) 
C) (c) 
D) (d) 
A) (a) 
B) (b) 
C) (c) 
D) (d)

-Refer to Figure 20-2 (d). If the voltage gain would be:

Which op-amp circuit would be useful to switch to an ʺonʺ condition at a specified voltage?

The OTA has a input impedance and a CMRR.

The output of a peak detector is always:

-Refer to Figure 20-1. Which of these circuits is known as a constant-current source?

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

RC Circuits

RL Circuits

RlC Circuits and Resonance

Passive Filters

Circuit Theorems in Ac Analysis

Three-Phase Systems in Power Applications

Filters

Exam 20: Time Response of Reactive Circuits

-Refer to Figure 20-2 (d). If the voltage gain would be:

Which op-amp circuit would be useful to switch to an ʺonʺ condition at a specified voltage?

The OTA has a ________ input impedance and a ________ CMRR.

The output of a peak detector is always:

-Refer to Figure 20-1. Which of these circuits is known as a constant-current source?

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

RC Circuits

RL Circuits

RlC Circuits and Resonance

Passive Filters

Circuit Theorems in Ac Analysis

Three-Phase Systems in Power Applications

Filters

The OTA has a input impedance and a CMRR.