Electronic Devices and Circuits MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Electronic Devices and Circuits, 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 Electronic Devices and Circuits 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 Electronic Devices and Circuits mcq questions that explore various aspects of Electronic Devices and Circuits problems. Each MCQ is crafted to challenge your understanding of Electronic Devices and Circuits 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 Electronic Devices and Circuits 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 Electronic Devices and Circuits. 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 Electronic Devices and Circuits knowledge to the test? Let's get started with our carefully curated MCQs!

Electronic Devices and Circuits MCQs | Page 62 of 82

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Q611.
All of the following elements have three valence electrons EXCEPT
Discuss
Answer: (d).arsenic
Q612.
Assertion (A): In n-p-n transistor conduction is mainly due to electrons.

Reason (R): In n type materials electrons are majority carriers.
Discuss
Answer: (a).Both A and R are true and R is correct explanation of A
Q613.
The factor n in the equation for calculating current for a silicon diode is
Discuss
Answer: (d).2 for low levels of current and 1 for high levels of current
Discuss
Answer: (b).a display device
Q615.
An enhancement mode MOSFET is on when the gate voltage is
Discuss
Answer: (d).more threshold value
Q616.
For the n-type semiconductor with n = NP and P = ni² / ND , the hole concentration will fall below the intrinsic value because some of the holes
Discuss
Answer: (d).recombine with the electrons.
Q617.
The main purpose of using transformer coupling in a class A amplifier is to make it more
Discuss
Answer: (d).distortion free
Q618.
The effective channel length of a MOSFET in saturation decreases with increase in
Discuss
Answer: (a).gate voltage
Q619.
Which of the following element does not have three valence electrons?
Discuss
Answer: (d).Phosphorus
Q620.
Which of the following is used in the sterilization of water?
Discuss
Answer: (c).Ozone