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 43 of 103

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Q421.
A transconductance amplifier has

a.

high input impedance and low output impedance

b.

low input impedance and high output impedance

c.

high input and output impedance

d.

low input and output impedance

Discuss
Answer: (c).high input and output impedance
Q422.
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 output signal-to-noise ratio is

a.

100

b.

50

c.

10

d.

5

Discuss
Answer: (b).50
Q423.
In order to protect a MOSFET against damage from any stray voltage at the gate

a.

grounding rings are provided

b.

terminals are shorted

c.

source terminal is earthed during transit

d.

none of these

Discuss
Answer: (c).source terminal is earthed during transit
Q424.
A dc amplifier can operate

a.

at zero frequency

b.

only at low frequency

c.

only at high frequencies

d.

both at low and high frequencies

Discuss
Answer: (a).at zero frequency
Q425.
Assertion (A): In a common source amplifier with source terminal at ac ground the voltage gain is about gm rd

Reason (R): A common source amplifier is a source follower circuit

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: (c).A is correct R is wrong
Q426.
Thermal runaway will take place if the quiescent point is such that

a.

VCE > 1/2VCC

b.

VCE < VCC

c.

VCE < 2VCC

d.

VCE < 1/2VCC

Discuss
Answer: (a).VCE > 1/2VCC
Q427.
In applications where __________ input resistance is needed, the JFET is preferred to the bipolar transistor.

a.

zero

b.

very low

c.

low

d.

high

Discuss
Answer: (d).high
Q428.
CC circuit is suitable for impedance matching.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
Q429.
Which of the following number specification refers to FET with one gate?

a.

2N

b.

3N

c.

3Y

d.

3X

Discuss
Answer: (b).3N
Q430.
Which of the following plot can be directly used to determine ฮฒ?

a.

VCE versus iC for constant IB

b.

VBE versus iB for constant VCE

c.

VCB versus iC for constant IB

d.

All of the above

Discuss
Answer: (a).VCE versus iC for constant IB
Page 43 of 103