Power Electronics MCQs

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

Power Electronics MCQs | Page 27 of 42

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Q261.
When thyristors are connected in parallel, the current distribution may become non-uniform due to
Discuss
Answer: (a).inductive effect of current carrying conductors
Discuss
Answer: (c).a Schottky diode has lower cut in voltage and higher reverse saturation current
Discuss
Answer: (b).when anode current becomes zero
Discuss
Answer: (b).the durations of currents in all thyristors may or may not be equal
Discuss
Answer: (d).all of the above
Q266.
A crowbar circuit is generally needed for protection under fault conditions.
Discuss
Answer: (a).True
Discuss
Answer: (c).the maximum rate of rise of anode voltage which will not trigger the SCR if gate signal is not applied
Q268.
The number of leads in a DIAC are

a.

2

b.

3

c.

4

d.

6

Discuss
Answer: (a).2
Discuss
Answer: (a).application of positive pulse at cathode gate or negative pulse at anode gate
Q270.
Assertion (A): A class C chopper can operate in first and second quadrants

Reason (R): A class B chopper operates only in second quadrant.
Discuss
Answer: (b).Both A and R correct but R is not correct explanation of A