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Power Electronics

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

None of these
Decreases
Increases
Remains the same

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Power Electronics
A single phase full bridge inverter can operate in load commutation mode in case load consists of

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

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

 BJT.
 Schottky diode.
 Microwave transistor.
  Power MOSFET.

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Power Electronics
The latching current of GTO should be of order

 2 A.
 1 A.
 100 mA.
  500 mA.

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Power Electronics
Which statement is true for latching current ?

 It is related to turn off process of the device.
 Both C and D.
 It is related to conduction process of device.
  It is related to turn on process of the device.

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Power Electronics
ON state voltage drop across SCR lie between the range

 1.5 - 2 V.
  1 - 1.5 V.
 0 - 0.5 V.
 0.5 - 1 V.

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