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 31 of 82

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Discuss
Answer: (d).equal number of positive and negative charges
Q302.
Magnetic recording tape is most commonly made from
Discuss
Answer: (c).ferric-oxide
Discuss
Answer: (a).they have large saturation magnetisation
Discuss
Answer: (a).magnetic field intensity
Q305.
For insulators the energy gap is of the order of
Discuss
Answer: (d).5 to 15 eV
Q306.
When electronic emission occurs due to bombardment of high velocity electrons on a metal surface, it is called secondary emission.
Discuss
Answer: (a).True
Q307.
The reverse saturation current depends on the reverse bias.
Discuss
Answer: (b).False
Q308.
Recombination produces new electron-hole pairs
Discuss
Answer: (b).False
Q309.
An amplifier without feedback has a voltage gain of 50, input resistance of 1 kฮฉ and output resistance of 2.5 kฮฉ. The input resistance of the current shunt -ve feedback amplifier using the above amplifier with a feedback factor of 0.2 is
Discuss
Answer: (a).1/11 kฮฉ
Q310.
As compared to an ordinary semiconductor diode, a Schottky diode
Discuss
Answer: (a).has lower cut in voltage