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 79 of 82

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Q781.
In case of photo conductor for germanium when forbidden energy gap is 0.72 eV, the critical wavelength for intrinsic excitation will be
Discuss
Answer: (c).1.73 mm
Q782.
Intrinsic concentration of charge carriers in a semiconductor varies as
Discuss
Answer: (c).
Discuss
Answer: (a).varies inversely with current
Discuss
Answer: (c).miniature resistance
Q785.
In a bipolar transistor, the base collector junction has
Discuss
Answer: (b).reverse bias
Discuss
Answer: (c).the number of free electrons and holes increase by the same amount
Q787.
What is the necessary a.c. input power from the transformer secondary used in a half wave rectifier to deliver 500 W of d.c. power to the load?
Discuss
Answer: (a).1232 W
Discuss
Answer: (c).majority carriers in both regions
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Answer: (a).only for the positive half cycle of the input signal
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Answer: (b).measure of the ability of a device to produce a desired effect