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Power Electronics

Power Electronics
Which of following is not a power transistor?

 IGBTs.
  TRIAC.
 COOLMOS.
 SITS.

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Power Electronics
A diac is ___________ switch

An c.
A mechanical
A d.c.
None of these

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Power Electronics
IGBT combines the advantages of

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

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Power Electronics
Maximum power loss occurs during

  rise time.
 spread time.
 all.
 delay time.

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Power Electronics
The latching current of SCR is 20 mA. Its holding current will be

 23 mA.
 40 mA.
 60 mA.
  10 mA.

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Power Electronics
A diac has ___________ pn junctions

Four
Two
Three
None of these

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