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Power Electronics

Power Electronics
Figure shows two thyristors rated 400 A sharing a load current. Current through T2 is 180A. Current through T1 will be

 110 A.
 100 A.
 120 A.
  150 A.

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Power Electronics
Which semiconductor device acts like a diode and two transistor?

  Triac.
 SCR.
 Diac.
 UJT.

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Power Electronics
A single phase full bridge inverter can operated in load commutation mode in case load consist of

 RLC overdamped.
 RL.
 RLC critically damped.
 RLC underdamped.

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

Remains the same
Decreases
None of these
Increases

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Power Electronics
Which of following is normally ON device

 BJT.
 TRIAC.
  SIT.
 IGBT.

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Power Electronics
A power MOSFET has three terminals called

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

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