# Practice Quiz in Operational Amplifiers Part 4

(Last Updated On: May 14, 2021)

This is the Online Practice Quiz in Operational Amplifiers Part 4 from the book, Electronic Devices and Circuit Theory 10th Edition by Robert L. Boylestad. If you are looking for a reviewer in Electronics Engineering this will definitely help. I can assure you that this will be a great help in reviewing the book in preparation for your Board Exam. Make sure to familiarize each and every questions to increase the chance of passing the ECE Board Exam.

### Continue Part IV of the Online Practice Quiz

#### Quiz in Operational Amplifiers

Question 31. In which of the following are operational amplifiers (op-amps) used?

A. Oscillators

B. Filters

C. Instrumentation circuits

D. All of these

Question 32. This circuit is an example of a _____. A. single-ended input

B. double-ended (differential) input

C. double-ended output

D. common-mode operation

Question 33. Calculate the overall voltage gain of the circuit if R1 = 100 Ω and Rf = 1 kΩ. A. -1

B. -10

C. 11

D. 9

Question 34. What is the difference output voltage of any signals applied to the input terminals?

A. The differential gain times the difference input voltage.

B. The common-mode gain times the common input voltage.

C. The sum of the differential gain times the difference input voltage and the common-mode gain times the common input voltage.

D. The difference of the differential gain times the difference input voltage and the common-mode gain times the common input voltage.

Question 35. What is the level of the voltage between the input terminals of an op-amp?

A. Virtually zero

B. 5 V

C. 18 V

D. 22 V

Question 36. The _____ amplifier is the most widely used constant-gain amplifier circuit.

A. inverting

B. noninverting

C. differential

D. None of these

Question 37. In a differential connection, the signals that are opposite at the inputs are _____ amplified, and those that are common to the two inputs are _____ amplified.

A. slightly, slightly

B. slightly, highly

C. highly, highly

D. highly, slightly

Question 38. The ratio of the unity-gain frequency to the cutoff frequency is numerically equal to the level of _____.

A. CMRR

B. common-mode gain

C. closed-loop gain

D. open-loop gain

Question 39. An IC unit containing a differential amplifier built using both bipolar and FET transistors is referred to as a _____ circuit.

A. CMOS

B. BiFET

C. BiMOS

D. None of these

Question 40. In double-ended (differential) input operation, _____.

A. an input is applied between the two input terminals

B. two separate signals are applied to the input terminals

C. either an input is applied between the two input terminals or two separate signals are applied to the input terminals

D. None of these

### More Practice Quiz in Operational Amplifiers

Practice Quiz Part 1

Practice Quiz Part 2

Practice Quiz Part 3

Practice Quiz Part 4

Practice Quiz Part 5

Practice Quiz Part 6

### See: Complete List of Practice Quizzes

Note: After taking this particular quiz, you can proceed to check all the topics.