Analog Electronics
In all base driver amplifiers

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

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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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Analog Electronics
Which of the following statements is false?

Class AB operation cannot be used for a push pull audio power output phase
A push pull output transformer has a centre-tapped primary
All of these
Push pull signals are equal and opposite in phase

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