Analog Electronics
Feedback circuit in an oscillator can be accomplished by

 Inductive coupling between input and output
 Any one or combinations of the above methods
 Resistive coupling between input and output
 Capacitive coupling between input and output

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Analog Electronics
Which of the following statements is false?

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

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Analog Electronics
The typical input stage of an opamp has a

  differential input and single - ended output.
  differential input and differential output.
  single - ended input and differential output.
  single - ended input and single-ended output.

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