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Power Electronics

Power Electronics
The device that exhibits negative resistance region is ___________.

Diac
UJT
Triac
Transistor

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Power Electronics
Which of the following is disadvantage of fast recovery diodes?

 Recovery is only 50 µs.
  Doping is carried out.
 Recovery is only 5 µs.
 None of these.

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Power Electronics
SITH is also known as

  Filled controlled diode.
 Filled controlled rectifier.
 Silicon controlled rectifier.
 None of these.

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Power Electronics
Typical range of thyristor turn OFF time is

 3 - 50 µs.
  3 - 100 µs.
 3 - 10 µs.
 3 - 500 µs.

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Power Electronics
A diac is turned on by ___________.

None of these
Gate voltage
Gate current
A breakover voltage

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

  N1.
 P2.
 P1.
 N2.

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