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Analog Electronics

Analog Electronics
How will be the extrinsic semiconductor act at room temperature ?

 Poor conductor
 Medium Conductor
None of these
 Conductor

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Analog Electronics
The transition capacitance of a reverse biased pn junction having uniform doping on both sides, varies with junction voltage ( VB ) as

  VB.
  ( VB )- 1 / 2.
  1 / VB.
  ( VB )2.

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Analog Electronics
In a bipolar junction transistor the base region is made very thin so that

  base can be easily biased.
  recombination in base region is minimum.
  electric field gradient in base is high.
  base can be easily fabricated.

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Analog Electronics
When a junction diode is Reverse Biased then diode acts like .......................

 An open switch
None of these
 Short switch
 Close switch

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Analog Electronics
In a pnp transistor, the major carriers in the emitter are

 both.
 free electrons.
  holes.
 neither.

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Analog Electronics
A transistor has how many PN junctions?

 3.
 4.
  2.
 1.

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