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 50 of 103

Discover more Topics under Electronics and Communication Engineering

Q491.
In a transistor amplifier, the reverse saturation current Iแด„แด‘

a.

Doubles for every 10°C rise in temperature

b.

Doubles for every 20°C rise in temperature

c.

Increase 100°C with temperature

d.

Doubles for every 5°C rise in temperature

Discuss
Answer: (a).Doubles for every 10°C rise in temperature
Q492.
When the emitter current of a transistor is changed by 1 mA, its collector current changes by 0.990 mA. The common-emitter short-circuit current gain is

a.

1

b.

199

c.

99

d.

9.9

Discuss
Answer: (c).99
Q493.
Assertion (A): A common collector amplifier is used for matching a high impedance source to a low impedance load

Reason (R): A common collector amplifier has a near unity voltage gain

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
Q494.
In a crystal oscillator of the Colpitt's oscillator type, the crystal is put is place of the

a.

resistor Rโ‚

b.

condenser Cโ‚‚

c.

condenser Cโ‚

d.

inductor L

Discuss
Answer: (d).inductor L
Q495.
Class A and Class B power amplifiers predominate at

a.

audio frequencies

b.

radio frequencies

c.

all frequencies

d.

audio and radio frequency

Discuss
Answer: (a).audio frequencies
Q496.
In a class C operation VCC = 30 V and VCE(sat) = 2 V. The efficiency is

a.

93.75%

b.

88%

c.

6.66%

d.

3.33%

Discuss
Answer: (a).93.75%
Q497.
In a CE amplifier, the collector resistance is 6 kฮฉ and load resistance is 3 kฮฉ. The ac load resistance is

a.

9 kฮฉ

b.

6 kฮฉ

c.

3 kฮฉ

d.

2 kฮฉ

Discuss
Answer: (d).2 kฮฉ
Q498.
A voltage tripler circuit uses

a.

2 diodes and 2 capacitors

b.

3 diodes and 3 capacitors

c.

2 diodes and 3 capacitors

d.

3 diodes and 2 capacitors

Discuss
Answer: (b).3 diodes and 3 capacitors
Q499.
An op-amp uses

a.

RC coupling

b.

direct coupling

c.

transformer coupling

d.

either (b) or (c)

Discuss
Answer: (b).direct coupling
Q500.
In voltage amplifiers, the load resistance

a.

should be a small as possible

b.

should be as large as possible

c.

must be equal to output impedance

d.

must be half of output impedance

Discuss
Answer: (b).should be as large as possible
Page 50 of 103