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Power Electronics

Power Electronics
The latching current of SCR is 20 mA. Its holding current will be

 23 mA.
 60 mA.
  10 mA.
 40 mA.

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Power Electronics
Compared to transistor, ______________ have lower on state conduction losses and higher power handling capability

 TRIACs.
 MOSFETs.
  Thyristor.
 Semi conductor diodes.

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Power Electronics
Between the peak point and the valley point of UJT emitter characteristics we have ___________ region

Negative resistance
None of these
Cut-off
Saturation

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Power Electronics
If holding current of a thyristor is 2 mA then latching current should be

 0.01 A.
  0.004 A.
 0.009 A.
 0.002 A.

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

  Triac.
 UJT.
 SCR.
 Diac.

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Power Electronics
A power MOSFET has three terminals called

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

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