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 102 of 103

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Q1011.
In a transistor leakage current mainly depends on

a.

doping of base

b.

size of emitter

c.

rating of transistor

d.

temperature

Discuss
Answer: (d).temperature
Q1012.
In a CB amplifier the maximum efficiency could be

a.

99%

b.

85%

c.

50%

d.

25%

Discuss
Answer: (d).25%
Q1013.
Assertion (A): As per Miller theorem a capacitance C from input to output appears as a much larger capacitance across input terminals

Reason (R): In a lag network the output voltage appears across capacitor

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: (b).Both A and R are correct but R is not correct explanation for A
Q1014.
When a transistor is connected in common emitter mode, it with have

a.

negligible input resistance and high output resistance

b.

high input resistance and low output resistance

c.

medium input resistance and high output resistance

d.

low input resistance as well as output resistance

Discuss
Answer: (c).medium input resistance and high output resistance
Q1015.
The noise figure of FET circuit is

a.

independent of the quiescent point

b.

dependent on the quiescent point only

c.

dependent on the triggering mechanism

d.

independent of all above

Discuss
Answer: (a).independent of the quiescent point
Q1016.
The encapsulation of transistor is necessary for

a.

preventing radio interference

b.

preventing photo-emission effects

c.

avoiding loss of free electrons

d.

mechanical ruggedness

Discuss
Answer: (d).mechanical ruggedness
Q1017.
In CE approximately, the active region is where the collector curves are

a.

almost horizontal

b.

almost vertical

c.

inclined at 45°

d.

inclined at 60°

Discuss
Answer: (a).almost horizontal
Q1018.
A certain transistor has ฮฑdc of 0.98 and a collectors leakage current of 5 ฮผA. If IE = 1 mA, the base current will be

a.

35 ฮผA

b.

25 ฮผA

c.

15 ฮผA

d.

5 ฮผA

Discuss
Answer: (c).15 ฮผA
Q1019.
The signal input to a given amplifier is made up of 100 mฮฉ signal power and 1 mฮฉ noise power. The amplifier contributes an additional 100 mฮฉ of noise and has a power gain of 20 dB. The input signal-to noise ratio is

a.

2

b.

10

c.

20

d.

100

Discuss
Answer: (d).100
Q1020.
Assertion (A): A good op-amp should have very large band width

Reason (R): An ideal op-amp should have infinite input resistance and zero output resistance

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
Page 102 of 103