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Analog Electronics

Analog Electronics
The majority carriers in the emitter of a PNP transistor are

 pentavalent atoms.
 free electrons.
 trivalent atoms.
 holes.

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Analog Electronics
What is the range of energy band gap of semiconductors ?

 1-3 ev
 14-15 ev
 10-15 ev
 0 ev

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Analog Electronics
The junction capacitance of linearly graded junction varies with the applied reverse bias, VR as

  (VR)- 1/2.
  (VR)1/2.
  (VR)- 1.
  (VR)- 1/3.

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Analog Electronics
The following relationship between α and β are correct except

  α = β / (1 - β).
  β = α / (1 - α).
  α = β / (1 + β).
  1 - α = 1 / (1 + β).

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Analog Electronics
Early effect in BJT refers to

  thermal breakdown.
  avalanche breakdown.
  base narrowing.
  zener breakdown.

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Analog Electronics
A JFET can operate in

  depletion and enhancement mode only.
  enhancement mode only.
  none of these.
  depletion mode only.

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