Analog Electronics
What will be the result if pentavalent impurity is added to pure germanium or silicon ?

None of these
 N-type semiconductor
 Intrinsic semiconductor
 P-type semiconductor

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Analog Electronics
Which of the following statements is false?

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

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Analog Electronics
For an NPN transistor in normal bias

  only holes cross the collector junction.
  the emitter junction has high resistance.
  only majority carriers cross the collector junction.
  Je is forward biased and Jc is reverse biased.

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