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Power Electronics

Power Electronics
Thermal voltage VT can be given by

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

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Power Electronics
A triac is a ___________ switch

Unidirectional
Bidirectional
Mechanical
None of these

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Power Electronics
A diac has ___________ terminals.

Three
Two
Four
None of these

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Power Electronics
A diac has ___________ pn junctions

None of these
Four
Three
Two

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Power Electronics
The UJT may be used as ___________.

Am amplifier
A sawtooth generator
None of these
A rectifier

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Power Electronics
Which one is most suitable power device for high frequency (>100 KHz) switching application?

 Schottky diode.
  Power MOSFET.
 BJT.
 Microwave transistor.

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