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Power Electronics

Power Electronics
The typical time of rising time lies between

  1 - 4 µs.
 40 - 60 µs.
 10 - 20 µs.
 90 - 100 µs.

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Power Electronics
Which statement is true for latching current ?

  It is related to turn on process of the device.
 Both C and D.
 It is related to turn off process of the device.
 It is related to conduction process of device.

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

  N1.
 P2.
 P1.
 N2.

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Power Electronics
The maximum di/dt in a SCR is

 Directly proportional to supply voltage.
 Directly proportional to inductance in the circuit.
  Both A and B.
 Inversely proportional to supply voltage.

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

Cut-off
None of these
Saturation
Negative resistance

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Power Electronics
Anode current in an SCR consists of

  either electron or holes.
  holes only.
  Both electron and holes.
  electrons only.

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