Analog Electronics
Common emitter current gain hFE of a BJT is

 Dependent on collector-emitter voltage.
 Always constant.
 Dependent on base -emitter voltage.
  Dependent on collector current.

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Analog Electronics
For an NPN transistor in normal bias

  only holes cross the collector junction.
  only majority carriers cross the collector junction.
  Je is forward biased and Jc is reverse biased.
  the emitter junction has high resistance.

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