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 30 of 103

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Q291.
An oscillator requires an amplifier

a.

with negative feedback

b.

with positive feedback

c.

with either positive or negative feedback

d.

none of the above

Discuss
Answer: (b).with positive feedback
Q292.
A full wave bridge diode rectifier uses diodes having forward resistance of 50 ohms each. The load resistance is also 50 ohms. The voltage regulations is

a.

20%

b.

50%

c.

100%

d.

200%

Discuss
Answer: (d).200%
Q293.
The disadvantage of direct coupled amplifiers is

a.

drift

b.

large size of transistor

c.

low voltage gain

d.

both (b) and (c)

Discuss
Answer: (a).drift
Q294.
A transistor has a power rating of 8 W for a case temperature of 25°C. If derating factor is 30 mW/°C, the power rating for 55°C, case temperature is

a.

8 W

b.

7.5 W

c.

7.1 W

d.

6.8 W

Discuss
Answer: (c).7.1 W
Q295.
An ideal power supply has

a.

zero internal resistance

b.

very high internal resistance

c.

high output resistance

d.

both (b) and (c)

Discuss
Answer: (a).zero internal resistance
Q296.
In a self bias circuit for CE amplifier, the emitter resistance is made three times the original value. The collector current will

a.

remain the same

b.

become three times

c.

decrease

d.

become one-third

Discuss
Answer: (d).become one-third
Q297.
A P-channel MOSFET operating in the enhancement mode is characterized by Vt = - 4 V and IDQ = - 10 mA, when VGSQ = - 5.5 V, what will be VGSQ if IDQ = -15 mA and ID, on = - 16 mA

a.

- 2 V

b.

3 V

c.

0.13 V

d.

1.3 V

Discuss
Answer: (c).0.13 V
Q298.
In a transistor E mode the collector current with the transistor in cut off region is

a.

zero

b.

high

c.

equal to saturated value

d.

none of the above

Discuss
Answer: (a).zero
Q299.
Two CE stages, 1 and 2 are coupled through a capacitor. VCC is the same for both. Base resistances RB1 and RB2 are such that RB1 > RB2. Then

a.

base currents for both stages are equal

b.

base current of stage 1 is more than that of stage 2

c.

base current of stage 2 is more than that of stage 1

d.

either (b) or (c)

Discuss
Answer: (c).base current of stage 2 is more than that of stage 1
Q300.
In a two stage CE amplifier circuit, the ac collector resistance of the first stage depends on

a.

load resistance

b.

input impedance of first stage

c.

input impedance of second stage

d.

all of the above

Discuss
Answer: (c).input impedance of second stage
Page 30 of 103