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Power Electronics

Power Electronics
The latching current of SCR is 20 mA. Its holding current will be

 23 mA.
 40 mA.
 60 mA.
  10 mA.

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

  IGBT.
 FCT.
 MCT.
 GTO.

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Power Electronics
Materials used in heat sink should have

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

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

  low.
 high.
 moderate.
 infinity.

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Power Electronics
Light triggering mainly used in

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

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Power Electronics
To turn on UJT, the forward bias on the emitter diode should be ___________ the peak point voltage.

Less than
Equal to
None of these
More than

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