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Power Electronics

Power Electronics
A thyristor will be triggered when Vg = 1.5 volt and Ig = 100 mA in the given figure. Calculate the value of R in ohm is

 3.714.
 60.
 65.
  37.14.

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Power Electronics
SITH is also known as

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

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Power Electronics
A power MOSFET has three terminals called

  Drain, source and gate.
 Drain, source and base.
 Collector, emitter and gate.
 Collector, emitter and base.

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Power Electronics
Light triggering mainly used in

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

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

 SITH.
  GTO.
 SCR.
 SIT.

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Power Electronics
When the temperature increases, the intrinsic stand off ratio ___________.

None of these
Increases
Essentially remains the same
Decreases

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