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Power Electronics

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

 SCR.
 Diac.
 UJT.
  Triac.

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Power Electronics
A diac has ___________ semiconductor layers

Four
Three
None of these
Two

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Power Electronics
Which triggering is the most reliable?

  dV / dt triggering.
  Thermal triggering.
  Forward voltage triggering.
  Gate triggering.

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

 P2.
 N2.
  N1.
 P1.

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Power Electronics
A triac has ___________ semiconductor layers.

Five
Three
Four
Two

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

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

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