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Power Electronics

Power Electronics
A diac has ___________ semiconductor layers

Four
Three
Two
None of these

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Power Electronics
A triac has ___________ semiconductor layers.

Four
Three
Five
Two

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Power Electronics
The latching current of GTO should be of order

 1 A.
  500 mA.
 100 mA.
 2 A.

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Power Electronics
Which of following devices has highest di/dt and dv/dt capability?

  GTO.
 SIT.
 SITH.
 SCR.

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Power Electronics
Light triggering mainly used in

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

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Power Electronics
Thyristor is nothing but a

 Amplifier with large current gain.
 Controlled transistor.
  Controlled switch.
 Amplifier with higher gain.

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