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Power Electronics

Power Electronics
Which of following is not a power transistor?

 SITS.
 IGBTs.
 COOLMOS.
  TRIAC.

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Power Electronics
The device that exhibits negative resistance region is ___________.

UJT
Triac
Transistor
Diac

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Power Electronics
The device that does not have the gate terminal is ___________.

Triac
FET
Diac
SCR

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Power Electronics
A diac is simply ___________.

None of these
A single junction device
A three junction device
A triac without gate terminal

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Power Electronics
An SCR has half cycle surge current rating of 3000 A for 50 Hz supply. One cycle surge current will be

 1500 A.
 2121.32 A.
 4242.64 A.
 6000 A.

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Power Electronics
The typical time of rising time lies between

 10 - 20 µs.
 40 - 60 µs.
 90 - 100 µs.
  1 - 4 µs.

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