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Power Electronics

Power Electronics
A diac has ___________ terminals.

Two
Four
None of these
Three

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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
SITH is also known as

 None of these.
  Filled controlled diode.
 Silicon controlled rectifier.
 Filled controlled rectifier.

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Power Electronics
A diac is turned on by ___________.

A breakover voltage
None of these
Gate current
Gate voltage

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Power Electronics
A diac is simply ___________.

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

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Power Electronics
Which of the following is disadvantage of fast recovery diodes?

 None of these.
  Doping is carried out.
 Recovery is only 5 µs.
 Recovery is only 50 µs.

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