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Power Electronics

Power Electronics
The normal way to turn on a diac is by ___________.

Breakover voltage
None of these
Gate voltage
Gate current

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Power Electronics
BCT is used for

 Low power phase control.
 Low power current control.
 High power current control.
  High power phase control.

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Power Electronics
Which of following is normally ON device

 TRIAC.
  SIT.
 IGBT.
 BJT.

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Power Electronics
A triac has ___________ semiconductor layers.

Four
Two
Three
Five

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Power Electronics
Maximum power loss occurs during

 delay time.
 all.
 spread time.
  rise time.

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

 Equalizing circuit.
 Fuse.
 Circuit breaker.
  Snubber circuit.

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