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Power Electronics

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

 BJT.
  Power dioed.
 None of above.
 MOSFET.

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Power Electronics
If the anode current is 800 A, then the amount of current required to turn off the GTO is about

 400 A.
  200 A.
 600 A.
 20 A.

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Power Electronics
The maximum di/dt in a SCR is

  Both A and B.
 Inversely proportional to supply voltage.
 Directly proportional to supply voltage.
 Directly proportional to inductance in the circuit.

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

Transistor
Diac
Triac
UJT

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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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Power Electronics
Calculate the maximum voltage that can be safely blocked by the string shown in figure, if maximum allowable leakage current is 2 mA?

 6 KV.
  8 KV.
 2 KV.
 10 KV.

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