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Power Electronics

Power Electronics
Which of following is not a power transistor?

 COOLMOS.
 IGBTs.
 SITS.
  TRIAC.

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Power Electronics
Anode current in an SCR consists of

  Both electron and holes.
  electrons only.
  holes only.
  either electron or holes.

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Power Electronics
IGBT combines the advantages of

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

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Power Electronics
Switching frequency of SITH is

  100 KHz.
 60 KHz.
 5 KHz.
 10 KHz.

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Power Electronics
Light triggering mainly used in

  high voltage direct current transmission.
  all of these.
 medium voltage direct current transmission.
 low - voltage direct current transmission.

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Power Electronics
Which of the following is used in SCR to protect from high dV / dt?

 Circuit breaker.
  Snubber circuit.
 Fuse.
 Equalizing circuit.

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