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Power Electronics

Power Electronics
The latching current of GTO should be of order

  500 mA.
 100 mA.
 1 A.
 2 A.

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

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

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Power Electronics
A triac has ___________ semiconductor layers.

Three
Four
Five
Two

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

SCR
Transistor
None of these
UJT

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Power Electronics
For an SCR gate cathode characteristic is a straight line of 130. For triggered source volume of 15 V and allowable gate power dissipation of 0.5 W compute the gate source resistance?

 115 ohm
  111.9 ohm
 11.19 ohm
 108 ohm

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