Analog Electronics
What will happen if doping of an intrinsic semiconductor with pentavalent impurity atom ?

None of these
 Fermi level not change
 Fermi level fall
 Fermi level raises

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

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Analog Electronics
For an NPN transistor in normal bias

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

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