Q. In a 3 phase bridge rectifier the ripple frequency is
✅ Correct Answer: (D)
Six times the input frequency
Power Electronics MCQs | Page - 4
Dear candidates you will find MCQ questions of Power Electronics here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Q. DIAC are specifically designed to trigger
✅ Correct Answer: (D)
Only (a) and (b)
Q. As the breakdown voltage reached, the DIAC exhibits
✅ Correct Answer: (D)
All of these
Q. In BJT, the forward biased base emitter junction inject holes from base to emitter, the holes
✅ Correct Answer: (D)
Only (a) and (b)
Q. In BJT, switching losses occurs
✅ Correct Answer: (C)
Both at turn on and off
Q. The average value of the output voltage in a step - down dc chopper is given by
✅ Correct Answer: (B)
V 0 = D V s
Q. The ac input current at slip rings will be
✅ Correct Answer: (C)
4.1A
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