Analog Electronics
Three difference Q points are shown on a load line. The upper Q point represents the

  maximum current gain.
 cutoff point.
 intermediate current gain.
 minimum current gain.

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Analog Electronics
In all base driver amplifiers

ac emitter voltage is 180° out of phase with ac base voltage
None of these
ac collector voltage is in phase with ac base voltage
ac collector voltage is 180° out of phase with ac base voltage

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