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 14 of 103

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Q131.
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
Q132.
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
Q133.
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
Q134.
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
Q135.
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
Q136.
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
Q137.
In a CE amplifier the ac cut off voltage is 9 V and slope of ac load line is - 0.5 mA/V. The ac saturation current is

a.

9 mA

b.

4.5 mA

c.

3 mA

d.

18 mA

Discuss
Answer: (b).4.5 mA
Q138.
A differential amplifier consists of two CB amplifiers.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (b).False
Q139.
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
Q140.
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
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