Analog Electronics
For transistor action

  Je must be forward biased and Jc should be reverse biased.
  the base region must be very thin and lightly doped.
  all of these.
  the emitter should be heavily doped.

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Analog Electronics
Which of the following statements is false?

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

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Analog Electronics
When a transistor is connected in common emitter mode, it with have

Low input resistance as well as output resistance
High input resistance and low output resistance
Negligible input resistance and high output resistance
Medium input resistance and high output resistance

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