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Power Electronics

Power Electronics
Which following is a two terminal three layer device?

  Power dioed.
 None of above.
 BJT.
 MOSFET.

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

Decreases
Increases
Essentially remains the same
None of these

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Power Electronics
A triac is equivalent to two SCRs ___________.

In inverse-parallel
In series
None of these
In parallel

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Power Electronics
Example of a voltage clamping device

 snubber circuit.
 aluminium block.
 fast acting fuse.
  metal oxide varistor.

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

 BJT.
 Schottky diode.
  Power MOSFET.
 Microwave transistor.

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Power Electronics
IGBT combines the advantages of

  BJTs and MOSFETs.
 None of these.
 BJTs and SITs.
 SITs and MOSFETs.

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