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Power Electronics MCQs | Page - 5
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.
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Q. 41) For 3 phase rotary converters, when power factor is unity. the ac line to dc current ratio is
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Q. 42) In an arc rectifier the drop in voltage at the cathode is approximately
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Q. 43) In arc rectifiers mercury is chosen as the liquid for rectifier because
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Q. 44) Ionization potential of mercury is approximately
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Q. 45) Least undulating current will be delivered by which mercury arc rectifier
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Q. 46) In a mercury arc rectifier the cathode voltage drop is due to
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Q. 47) In mercury arc rectifier, voltage drop at anode is due to
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Q. 48) The average life of the glass bulb rectifier is
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Q. 49) The vacuum inside the glass bulb of a mercury arc rectifier is of the order of
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Q. 50) Which device can be used in a chopper circuit?
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