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Power Electronics

Power Electronics
In a P1N1P2N2 thyristor which layer is less doped ?

 N2.
 P1.
 P2.
  N1.

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Power Electronics
Which one is most suitable power device for high frequency (>100 KHz) switching application?

 Schottky diode.
  Power MOSFET.
 BJT.
 Microwave transistor.

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Power Electronics
Which of following is normally ON device

 BJT.
 TRIAC.
 IGBT.
  SIT.

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Power Electronics
A diac has ___________ terminals.

None of these
Two
Three
Four

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Power Electronics
Light triggering mainly used in

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

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Power Electronics
When the temperature increases, the inter-base resistance (RBB) of a UJT ___________.

None of these
Increases
Remains the same
Decreases

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