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Power Electronics

Power Electronics
COOLMOS device can be used in application up to power range of

 500 VA.
 1 KVA.
  2 KVA.
 100 KVA.

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Power Electronics
A power MOSFET has three terminals called

  Drain, source and gate.
 Collector, emitter and gate.
 Drain, source and base.
 Collector, emitter and base.

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Power Electronics
Between the peak point and the valley point of UJT emitter characteristics we have ___________ region

Negative resistance
Cut-off
None of these
Saturation

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Power Electronics
The typical time of rising time lies between

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

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Power Electronics
A diac has ___________ terminals.

Two
Four
None of these
Three

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Power Electronics
Thermal voltage VT can be given by

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

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