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 84 of 103

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Q831.
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
Q832.
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
Q833.
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
Q834.
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
Q835.
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
Q836.
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
Q837.
In all base driver amplifiers

a.

ac collector voltage is 180° out of phase with ac base voltage

b.

ac emitter voltage is 180° out of phase with ac base voltage

c.

ac collector voltage is in phase with ac base voltage

d.

none of the above

Discuss
Answer: (a).ac collector voltage is 180° out of phase with ac base voltage
Q838.
The horizontal intercept of dc load line is the same as ideal

a.

cut off point

b.

saturation point

c.

operating point

d.

quasi saturation point

Discuss
Answer: (a).cut off point
Q839.
Figure shows a portion of linear v - i characteristics of diode. If applied voltage is + 6 V, the current will be

a.

42 mA

b.

48 mA

c.

51 mA

d.

54 mA

Discuss
Answer: (d).54 mA
Q840.
In figure the zener current

a.

is always 130 mA

b.

may vary between 10 mA and 130 mA

c.

may vary between 60 mA and 130 mA

d.

is always equal to 65 mA

Discuss
Answer: (b).may vary between 10 mA and 130 mA
Page 84 of 103