Analog Electronics
The common-mode voltage gain is

  smaller than the voltage gain.
  equal to the voltage gain.
  greater than the voltage gain.
None of these

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

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

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