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Power Electronics

Power Electronics
Switching frequency of SITH is

 60 KHz.
 5 KHz.
  100 KHz.
 10 KHz.

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Power Electronics
Under normal operating condition voltage clamping device offers impedance of

 moderate value.
 low value.
  high value.
 zero value.

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Power Electronics
A triac can pass a portion of ___________ half-cycle through the load.

Both positive and negative
Only positive
None of these
Only negative

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Power Electronics
A single phase full bridge inverter can operated in load commutation mode in case load consist of

 RLC critically damped.
 RLC overdamped.
 RLC underdamped.
 RL.

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Power Electronics
Compared to transistor, ______________ have lower on state conduction losses and higher power handling capability

 TRIACs.
 Semi conductor diodes.
 MOSFETs.
  Thyristor.

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

Diac
Transistor
UJT
Triac

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