Explore topic-wise MCQs in Electronic Devices and Circuits.

This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Electronic Devices and Circuits knowledge and support exam preparation. Choose a topic below to get started.

1.

In an inverting op-amp circuit for which the gain is 4 V/V and the total resistance used is 100 k . Then the value of R1 and R2 (negative feedback)

A. R<sub>1</sub> = 20K and R<sub>1</sub> = 80K
B. R<sub>1</sub> = 80K and R<sub>1</sub> = 20K
C. R<sub>1</sub> = 40K and R<sub>1</sub> = 60K
D. R<sub>1</sub> = 50K and R<sub>1</sub> = 50K
Answer» B. R<sub>1</sub> = 80K and R<sub>1</sub> = 20K
Discussion
2.

The loop gain for an ideal operational amplifier with R1 = 10k and R2(negative feedback) = 1M is

A. 20 db
B. 40 db
C. 60 db
D. 80 db
Answer» C. 60 db
Discussion
3.

You are provided with an ideal op amp and three 10k resistors. Using series and parallel resistor combinations, how many different inverting-amplifier circuit topologies are possible?

A. 2
B. 3
C. 4
D. 5
Answer» D. 5
Discussion