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Power Electronics

Power Electronics
COOLMOS device can be used in application up to power range of

 1 KVA.
  2 KVA.
 500 VA.
 100 KVA.

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Power Electronics
Which following is a two terminal three layer device?

 BJT.
 MOSFET.
 None of above.
  Power dioed.

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Power Electronics
The V-I characteristics for a triac in the first and third quadrants are essentially identical to those of ___________ in its first quadrant

UJT
None of these
SCR
Transistor

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Power Electronics
Gate circuit or triggering circuit of a thyristor is

  lower power circuit.
 may be low power or high power circuit.
 high power circuit.
 magnetic circuit.

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Power Electronics
To turn on UJT, the forward bias on the emitter diode should be ___________ the peak point voltage.

Equal to
None of these
Less than
More than

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Power Electronics
The typical value of SCR for modern alternator is

 1.5.
 0.5.
 1.2.
 1.0.

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