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Power Electronics

Power Electronics
A thyristor can termed as

 Both a and B.
 Square wave switch.
 AC switch.
  DC switch.

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Power Electronics
IGBT combines the advantages of

 BJTs and SITs.
  BJTs and MOSFETs.
 SITs and MOSFETs.
 None of these.

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Power Electronics
The UJT may be used as ___________.

Am amplifier
None of these
A sawtooth generator
A rectifier

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Power Electronics
How can we protect SCR from thermal conditions ?

 Using CB and fuse.
 Use of snubber circuit.
  Using heat sink.
 Using equalizing circuit.

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Power Electronics
For series connected SCR’s dynamic equalising circuit consists of

  R and C in series but with diode across R.
 series R and diode with C across R.
 R and C in series but with diode across C.
 series R and diode with C across R.

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Power Electronics
Which one is most suitable power device for high frequency (>100 KHz) switching application?

  Power MOSFET.
 BJT.
 Schottky diode.
 Microwave transistor.

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MORE MCQ ON Power Electronics

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