# Practice Quiz in Operational Amplifiers Part 6

(Last Updated On: February 3, 2020)

This is the Online Practice Quiz in Operational Amplifiers Part 6 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 VI of the Online Practice Quiz

#### Quiz in Operational Amplifiers

Question 51. As the frequency increases, the input impedance of an op-amp _____ and the output impedance _____.

A. increases, increases

B. increases, decreases

C. decreases, decreases

D. decreases, increases

Question 52. The output offset voltage is determined by _____.

A. the input offset voltage and input offset current

B. the closed-loop gain

C. both the input offset voltage and the closed-loop gain

D. None of these

Question 53. An input applied to either input terminal will result in _____.

A. outputs from both output terminals, which have opposite polarities

B. outputs from both output terminals, which have the same polarities

C. a single output from one of the output terminals

D. None of these

Question 54. If two opposite-polarity input signals are applied, the operation is referred to as _____.

A. double-ended

B. single-ended

C. common-mode

D. All of these

Question 55. The common-mode rejection ratio (CMRR) is defined by _____.

A. Ad / Ac

B. Ac / Ad

C. Ad × Ac

D. Ad + Ac

Question 56. Inverting amplifier connection is more widely used because it has _____.

A. higher gain

B. better frequency stability

C. unit gain

D. None of these

Question 57. An operational amplifier has a _____ input impedance and a _____ output impedance.

A. high, low

B. high, high

C. low, low

D. low, high

Question 58. Ideally, the value of the CMRR is _____. Practically, the _____ the value of CMRR, the better the circuit operation.

A. zero, smaller

B. infinite, larger

C. zero, larger

D. infinite, smaller

Question 59. If the same input is applied to both inputs, the operation is called _____.

A. double-ended

B. single-ended

C. common-mode

D. All of these

Question 60. As the supply voltage increases, the voltage gain of the circuit _____ and the power consumption _____.

A. increases, increases

B. increases, decreases

C. decreases, decreases

D. decreases, increases

Question 61. When both input signals are the same, a common signal element due to the two inputs can be defined as the _____ of the two signals.

A. difference

B. sum

C. average of the sum

D. product

### 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.

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