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 59 of 103

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Q581.
If 1.5% of the output of an amplifier is feedback positively to the input, the minimum gain required of the amplifier for oscillations to occur, is

a.

16.6

b.

44.4

c.

66.6

d.

75

Discuss
Answer: (c).66.6
Q582.
The use of a capacitor filter in a rectifier circuit gives satisfactory performance only when the load

a.

current is high

b.

current is low

c.

voltage is high

d.

voltage is low

Discuss
Answer: (b).current is low
Q583.
Two 3ฮฉ speakers in series will have a total impedance of

a.

1 ฮฉ

b.

3/2 ฮฉ

c.

3 ฮฉ

d.

6 ฮฉ

Discuss
Answer: (b).3/2 ฮฉ
Q584.
In a CE amplifier the ac signal is increased. Which of the following will not change?

a.

Ac base voltage

b.

Ac collector voltage

c.

Ac emitter voltage

d.

Ac collector voltage and ac emitter voltage

Discuss
Answer: (c).Ac emitter voltage
Q585.
The ideal op-amp has the following characteristics

a.

Ri = โˆž, A = โˆž, R0 = 0

b.

Ri = 0, A = โˆž, R0 = 0

c.

Ri = โˆž, A = 0, R0 = 0

d.

Ri = 0, A = โˆž, R0 = โˆž

Discuss
Answer: (a).Ri = โˆž, A = โˆž, R0 = 0
Q586.
The input differential stage of op-amp. 741 is baised at about 10 ฮผA current such a low current of the input stage gives

1. high CMRR
2. high differential gain
3. low differential
4. high input impedance

Which of these are correct?

a.

1 and 2

b.

1, 2 and 4

c.

3 and 4

d.

1, 2, 3 and 4

Discuss
Answer: (b).1, 2 and 4
Q587.
IN 3242 is a

a.

P-N-P transistor

b.

N-P-N transistor

c.

UJT

d.

semi-conductor diode

Discuss
Answer: (d).semi-conductor diode
Q588.
Low frequency response of amplifier is mainly limited by

a.

input capacitor

b.

bypass capacitor

c.

output capacitor

d.

biasing capacitor

Discuss
Answer: (b).bypass capacitor
Q589.
With negative feedback the closed loop gain is always less than open loop gain.

a.

True

b.

False

c.

May be True or False

d.

can't say

Discuss
Answer: (a).True
Q590.
As compared to a bipolar transistor, a JFET is

a.

highly sensitive to changes in input voltage

b.

more sensitive to changes in input voltage

c.

less sensitive to changes in input voltage

d.

equally sensitive to changes in input voltage

Discuss
Answer: (c).less sensitive to changes in input voltage
Page 59 of 103