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 76 of 103

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Q751.
In a transistor, current ICBO flow when

a.

some D.C. voltage is applied in the reverse direction to the emitter junction with the collector open circuit

b.

some D.C. voltage is applied in the forward direction to the collector junction with the emitter open circuit

c.

some D.C. voltage is applied in the reverse direction to the collector junction with the emitter open circuited

d.

some D.C. voltage is applied in the forward direction to the emitter junction with the collector open circuited

Discuss
Answer: (c).some D.C. voltage is applied in the reverse direction to the collector junction with the emitter open circuited
Q752.
The D.C. alpha(ฮฑ) of a transistor is approximately

a.

unity

b.

10 to 50

c.

100 to 500

d.

1000 to 5000

Discuss
Answer: (a).unity
Q753.
Which of the following statement is incorrect?

a.

UJT is a 3-terminal diode having two unequally doped regions

b.

A UJT can be triggered by any one of its three terminals

c.

The bi-directional switching characteristics of a diac are symmetrical

d.

As compared to JFETs, MOSFETs generate less noise in high gain amplifiers

Discuss
Answer: (d).As compared to JFETs, MOSFETs generate less noise in high gain amplifiers
Q754.
Which circuit is called swamped amplifier?

a.

CC

b.

CE

c.

CB

d.

Both (a) and (b)

Discuss
Answer: (a).CC
Q755.
In a linear op-amp circuit

a.

the product of gain and bandwidth is constant

b.

input can be dc only

c.

input can be ac only

d.

saturation may occur

Discuss
Answer: (a).the product of gain and bandwidth is constant
Q756.
In a normally biased N-P-N transistor the main current crossing the collector junction is

a.

a drift current

b.

a hole current

c.

a diffusion current

d.

same as the base current

Discuss
Answer: (a).a drift current
Q757.
An engineer designs an amplifier to have a voltage gain of 60, but when constructed it only had a gain of 50. Which of the following will increases from this type of operation?

a.

Stability

b.

Bandwidth

c.

Distortion

d.

Input resistance

Discuss
Answer: (c).Distortion
Q758.
For a transistor if ฮฑdc = 0.98 and emitter current IE is 2 mA, then base current will be

a.

10 ฮผA

b.

40 ฮผA

c.

80 ฮผA

d.

200 ฮผA

Discuss
Answer: (a).10 ฮผA
Q759.
Assertion (A): Linear ICs include audio amplifier, wideband amplifier, RF amplifier and IF amplifier

Reason (R): The error voltage in a feedback circuit is very small

a.

Both A and R are correct and R is correct explanation for A

b.

Both A and R are correct but R is not correct explanation for A

c.

A is correct R is wrong

d.

A is wrong R is correct

Discuss
Answer: (b).Both A and R are correct but R is not correct explanation for A
Q760.
Assertion (A): The horizontal intercept of dc load line is the same as ideal cut off point

Reason (R): When a transistor is in cut off region, collector current is zero

a.

Both A and R are correct and R is correct explanation for A

b.

Both A and R are correct but R is not correct explanation for A

c.

A is correct R is wrong

d.

A is wrong R is correct

Discuss
Answer: (a).Both A and R are correct and R is correct explanation for A
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