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Power Electronics

Power Electronics
Thermal voltage VT can be given by

 (K2/q)(T + 1/T - 1).
 qT/K.
  Kq/T.
 KT/q.

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Power Electronics
When the temperature increases, the intrinsic stand off ratio ___________.

Essentially remains the same
None of these
Decreases
Increases

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Power Electronics
The latching current of GTO should be of order

 1 A.
  500 mA.
 100 mA.
 2 A.

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

 N2.
  N1.
 P1.
 P2.

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Power Electronics
After peak point, the UJT operates in the ___________ region.

Negative resistance
Cut-off
None of these
Saturation

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Power Electronics
Which of the following is used in SCR to protect from high dV / dt?

  Snubber circuit.
 Fuse.
 Circuit breaker.
 Equalizing circuit.

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