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

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

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Analog Electronics
Conventional biasing of a BJT has

  EB reversed biased and CB forward biased.
  EB forward biased and CB reversed biased.
  EB reversed biased and CB reversed biased.
  EB forward biased and CB forward biased.

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