Analog Electronics
Which of the following amplifier circuit using junction transistor has the best gain?

All have the same gain
Common collector
Common emitter
Common base

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

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

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