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Power Electronics

Power Electronics
Under over voltage condition impedance offered by the voltage clamping device is

 moderate.
 high.
  low.
 infinity.

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Power Electronics
Power transistor are type of

 IGBTs.
 BJTs.
  All of above.
 MOSFETs.

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Power Electronics
The device that does not have the gate terminal is ___________.

SCR
Triac
FET
Diac

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Power Electronics
Switching frequency of SITH is

 10 KHz.
 60 KHz.
  100 KHz.
 5 KHz.

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Power Electronics
A diac is turned on by ___________.

Gate voltage
A breakover voltage
Gate current
None of these

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Power Electronics
Which of the following is used in heat sink?

 Carbon.
 Iron.
 Silver.
  Aluminium.

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