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Power Electronics

Power Electronics
The latching current of GTO should be of order

 100 mA.
  500 mA.
 2 A.
 1 A.

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Power Electronics
During which time maximum conduction spreading take place in the thyristor during turn ON?

 Rise time.
  Spread time.
 Delay time.
 Same for every case.

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Power Electronics
When a UJT is turned ON, the resistance between emitter terminal and lower base terminal ___________

None of these
Remains the same
Is decreased
Is increased

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Power Electronics
4 thyristors rated 200 V in series. The operating voltage of the string is 0.600 V. Derating factor of the string is

 0.7.
 0.2.
  0.25.
 0.75.

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

 SCR.
  GTO.
 SITH.
 SIT.

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Power Electronics
A diac has ___________ terminals.

Four
Three
Two
None of these

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