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 21 of 103

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Q201.
Symbol shown in figure represents a

a.

P-channel enhancement MOSFET

b.

N-channel DEMOSFET

c.

UJT with P-type base

d.

UJT with N-type base

Discuss
Answer: (a).P-channel enhancement MOSFET
Q202.
At the peak of negative half cycle in figure

a.

diode A is forward biased and diode B is reverse biased

b.

both diodes are reverse biased

c.

both diodes are forward biased

d.

diode A is reverse biased and diode B is forward biased

Discuss
Answer: (d).diode A is reverse biased and diode B is forward biased
Q203.
The input resistance Ri of the amplifier shown in the figure

a.

30/40 kฮฉ

b.

100 kฮฉ

c.

40 kฮฉ

d.

โˆž

Discuss
Answer: (b).100 kฮฉ
Q204.
In figure, current gain is

a.

ฮฑ

b.

rโ‚‘

c.

RL/rโ‚‘

d.

rโ‚‘/RL

Discuss
Answer: (a).ฮฑ
Q205.
In the CE circuit shown in figure the slope of dc load line will be

a.

- 1/500

b.

- 1/250

c.

- 1/750

d.

- 1/1000

Discuss
Answer: (a).- 1/500
Q206.
A power transistor dissipates 5 W. If ambient temperature is 30° and case to air thermal resistance is 10° C/W, the case temperature is

a.

80°C

b.

20°C

c.

32°C

d.

305°C

Discuss
Answer: (a).80°C
Q207.
An R-C coupled amplifier has mid-frequency gain of 200 and a frequency response from 100 Hz to 20 kHz. A negative feedback network with ฮฒ = 0.2 is incorporated into the amplifier circuit, the Bandwidth will be

a.

50 kHz

b.

20 kHz

c.

100 kHz

d.

infinite

Discuss
Answer: (c).100 kHz
Q208.
A full wave rectifier circuit using centre tapped transformer and a bridge rectifier are fed at 100 V, 50 Hz. The frequencies of outputs in these two rectifiers are

a.

100 Hz each

b.

50 Hz each

c.

100 Hz and 50 Hz

d.

50 Hz and 100 Hz

Discuss
Answer: (a).100 Hz each
Q209.
When the ac base voltage in a CE amplifier circuit is too high, the ac emitter current is

a.

zero

b.

constant

c.

alternating

d.

distorted

Discuss
Answer: (d).distorted
Q210.
When load is coupled to class A amplifier through transformer, efficiency decreases.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (b).False
Page 21 of 103