Analog Electronics
Common emitter current gain hFE of a BJT is

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

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Analog Electronics
The arrowhead on the transistor symbol points in the direction of

  majority carrier flow in the emitter region.
  electron flow in the emitter region.
  minority carrier flow in the emitter region.
  conventional electric current flow in the emitter region.

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