Analog Electronics MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Analog Electronics, a fundamental topic in the field of Electronics and Communication Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Analog Electronics MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Analog Electronics mcq questions that explore various aspects of Analog Electronics problems. Each MCQ is crafted to challenge your understanding of Analog Electronics principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Electronics and Communication Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Analog Electronics MCQs are your pathway to success in mastering this essential Electronics and Communication Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Analog Electronics. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Analog Electronics knowledge to the test? Let's get started with our carefully curated MCQs!

Analog Electronics MCQs | Page 25 of 103

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Q241.
A full wave rectifier circuit using centre tapped transformer, the input frequency 50 Hz. The frequency of output is

a.

100 Hz

b.

50 Hz

c.

25 Hz

d.

none of the above

Discuss
Answer: (a).100 Hz
Q242.
If the midband gain of an amplifier is 40 dB, the gain at half power frequency is

a.

37 dB

b.

30 dB

c.

20 dB

d.

13 dB

Discuss
Answer: (a).37 dB
Q243.
It is desired to reduce distortion in an amplifier from 8% to 2% by using 5% negative feedback. The open and closed loop gains respectively are

a.

60 and 15

b.

15 and 60

c.

6 and 1.5

d.

1.5 and 6

Discuss
Answer: (a).60 and 15
Q244.
An ideal op-amp requires

a.

zero input offset voltage

b.

low input offset voltage

c.

high input offset voltage

d.

infinite input offset voltage

Discuss
Answer: (a).zero input offset voltage
Q245.
A feedback network to be used with an amplifier to provide oscillation is tested and found to give an output of 0.124 V with a 0.5 V input. What percentage negative feedback should be introduced to the amplifier so that linear oscillations result?

a.

1.25%

b.

2.50%

c.

-1.25%

d.

-2.5%

Discuss
Answer: (c).-1.25%
Q246.
The advantage of Weinbridge oscillator over the phase shift oscillator is that oscillator the frequency may be varied over a range of

a.

1 : 2

b.

1 : 3

c.

1 : 5

d.

1 : 10

Discuss
Answer: (d).1 : 10
Q247.
An inverting amplifier has R1 = 10 kฮฉ, and Rf = 150 kฮฉ then the O/P voltage, if input voltage Vi = 1 volt.

a.

-15 V

b.

-10 V

c.

15 V

d.

-14 V

Discuss
Answer: (a).-15 V
Q248.
Consider the following statements:

A totem pole configuration used in the output stage if an op-amp has the advantage of using

1. Only n-p-n BJTs
2. Complementary symmetrical pair of transistors
3. Only one transistor

Which of these statements is/are correct?

a.

1 alone

b.

2 alone

c.

3 alone

d.

1 and 3

Discuss
Answer: (a).1 alone
Q249.
Assertion (A): An op-amp amplifier can amplify dc signal

Reason (R): An op-amp amplifier is a direct coupled amplifier

a.

Both A and R are correct and R is correct explanation for A

b.

Both A and R are correct but R is not correct explanation for A

c.

A is correct R is wrong

d.

A is wrong R is correct

Discuss
Answer: (a).Both A and R are correct and R is correct explanation for A
Q250.
The most common method for biasing a JFET is

a.

reverse bias

b.

self bias

c.

voltage divider bias

d.

none of the above

Discuss
Answer: (b).self bias
Page 25 of 103