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 78 of 103

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Q771.
The maximum theoretical efficiency for class A amplifier is

a.

12.5%

b.

25%

c.

50%

d.

75%

Discuss
Answer: (b).25%
Q772.
Assertion (A): A class C amplifier can also be used as frequency multiplier

Reason (R): When narrow current pulses drive a resonant circuit the output can be a near perfect sine wave

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
Q773.
The parameter ฮฒ of a BJT change by 300%. If self bias is used in the amplifier using this BJT, the quiescent value of IC and VCE remain almost the same.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
Q774.
A bypass capacitor produces

a.

dc ground

b.

ac ground

c.

both dc and ac ground

d.

none of the above

Discuss
Answer: (b).ac ground
Q775.
Rise time in a transistor is change from

a.

10% of its final value to 90% of its final value

b.

0% of its final value to 90% of its final value

c.

10% of its final value to 100% of its final value

d.

10% to its final value to 50% of its final value

Discuss
Answer: (a).10% of its final value to 90% of its final value
Q776.
In a JFET, gates are always

a.

forward biased

b.

reverse biased

c.

either forward or reverse biased

d.

unbiased

Discuss
Answer: (b).reverse biased
Q777.
By connecting external resistances to a differential amplifier we can adjust

a.

voltage gain

b.

bandwidth

c.

both voltage gain and bandwidth

d.

none of the above

Discuss
Answer: (c).both voltage gain and bandwidth
Q778.
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 must be the minimum gain of the oscillator to provide oscillations?

a.

40

b.

60

c.

100

d.

130

Discuss
Answer: (a).40
Q779.
CMRR is the ratio of differential voltage gain to common mode gain.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
Q780.
The purpose of impedance matching in an amplifier circuit is to achieve

a.

high efficiency

b.

reduce distortion

c.

maximum power transfer

d.

none of the above

Discuss
Answer: (c).maximum power transfer
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