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Power Electronics MCQ Questions & Answers | ECE

Learn Power Electronics MCQ questions & answers are available for a Electronics and Communications Engineering(ECE) students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Power Electronics MCQ question is the important chapter for a Electronics and Communications Engineering(ECE) and GATE students. Page-3 section-1

Each section contains 100 MCQs on Power Electronics .
21
When the temperature increases, the inter-base resistance (RBB) of a UJT ___________.
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Answer & Solution
Answer: Option A
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22
Power electronics essentially deals with control of a.c. power at ___________.
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Answer & Solution
Answer: Option D
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23
A DIAC is ___________ switch.
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Answer: Option A
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24
A diac is simply ___________.
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Answer: Option C
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25
A triac has ___________ semiconductor layers.
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Answer: Option C
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26
A diac has ___________ semiconductor layers
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Answer & Solution
Answer: Option A
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27
When a UJT is turned ON, the resistance between emitter terminal and lower base terminal ___________
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Answer: Option B
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28
The triac is ___________.
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Answer: Option A
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29
A triac is equivalent to two SCRs ___________.
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Answer: Option C
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30
An SCR is a . . . . . . . . triggered device
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Answer: Option B
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