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Power Electronics

Power Electronics
Switching frequency of SITH is

 10 KHz.
 60 KHz.
 5 KHz.
  100 KHz.

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Power Electronics
Typical range of thyristor turn OFF time is

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

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Power Electronics
Gate circuit or triggering circuit of a thyristor is

 may be low power or high power circuit.
 magnetic circuit.
  lower power circuit.
 high power circuit.

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Power Electronics
A diac is ___________ switch

A mechanical
An c.
A d.c.
None of these

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Power Electronics
IGBT combines the advantages of

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

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Power Electronics
When the temperature increases, the inter-base resistance (RBB) of a UJT ___________.

Remains the same
None of these
Decreases
Increases

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