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Power Electronics

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

  200 A.
 20 A.
 600 A.
 400 A.

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Power Electronics
Materials used in heat sink should have

  All of these.
 high melting point.
 high thermal conductivity.
 large surface area.

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Power Electronics
Example of a voltage clamping device

 fast acting fuse.
 aluminium block.
 snubber circuit.
  metal oxide varistor.

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Power Electronics
A modern power semiconductor device that combines the characteristic of BJT and MOSFET is

  IGBT.
 MCT.
 FCT.
 GTO.

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Power Electronics
Light triggering mainly used in

 medium voltage direct current transmission.
  high voltage direct current transmission.
 low - voltage direct current transmission.
  all of these.

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

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

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