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 3 of 103

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Q21.
Figure shows the self bias circuit for CE amplifier and its equivalent circuit. VBB and RB respectively are

a.

10 V and 4 k ohm

b.

5 V and 4 k ohm

c.

2 V and 4 k ohm

d.

2 V and 10 k ohm

Discuss
Answer: (c).2 V and 4 k ohm
Q22.
Figure is a 24 Vr stabilized power supply. The zener is 24 V, 600 mW. The minimum zener current is 10 mA. Proper values R and maximum load current are

a.

320 Ω, 10 mA

b.

400 Ω, 15 mA

c.

400 Ω, 10 mA

d.

320 Ω, 15 mA

Discuss
Answer: (d).320 Ω, 15 mA
Q23.
In figure as the load resistance is changed

a.

the zener current remain constant

b.

the load current remains constant

c.

the output voltage remains constant

d.

the output voltage and current through R remain constant

Discuss
Answer: (d).the output voltage and current through R remain constant
Q24.
In figure, voltage across R2 = + 10 V. If VBE = 0.7 V and VE = 0.7 V and RE = 10 kΩ, current through RE is

a.

1 mA

b.

0.93 mA

c.

2 mA

d.

1.86 mA

Discuss
Answer: (b).0.93 mA
Q25.
In figure, transistor βdc = 100 and LED voltage when it is conducting is 2 V. Then the base current which saturates the transistor is

a.

18 mA

b.

1.8 mA

c.

0.18 mA

d.

0.018 mA

Discuss
Answer: (c).0.18 mA
Q26.
In figure the dc emitter current of each transistor is about

a.

4 mA

b.

2 mA

c.

3 mA

d.

1 mA

Discuss
Answer: (d).1 mA
Q27.
Assume that op-amp in figure is ideal. If input Vi is triangular, the output V0 will be

a.

square wave

b.

sine wave

c.

triangular wave

d.

parabolic wave

Discuss
Answer: (a).square wave
Q28.
In the diode circuit of figure the diodes are ideal. The average current through ammeter is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q29.
The critical frequency of the circuit of figure is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q30.
Find resistance RB to bring transistor to threshold of saturation VCB = 0, VBE = 0.7 V, a = 0.96

a.

1.5 kΩ

b.

15 kΩ

c.

10 kΩ

d.

1 kΩ

Discuss
Answer: (a).1.5 kΩ
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