Analog Electronics
In a normally biased npn transistor, the electrons in the emitter have enough energy to overcome the barrier potential of the

 collector - base junction.
  base - emitter junction.
 base - collector junction.
 recombination path.

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Analog Electronics
Which of the following statements is false?

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

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