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Analog Electronics

Analog Electronics
The DC electric current gain in common collector configuration is given by

  α - 1.
  α.
  β + 1.
  β.

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Analog Electronics
The input offset electric current equals the

 difference between the two base currents.
 average of the two base currents.
 difference between the two base-emitter voltages.
 collector electric current divided by the base current.

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Analog Electronics
The action of JFET in its equivalent circuit can best be represented as a

Current controlled voltage source
voltage controlled current source
Voltage controlled voltage source
Current controlled Current source

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Analog Electronics
Which of the following is the pentavalent material ?

 Arsenic
 Boron
 Neon
 Gallium

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Analog Electronics
The common - mode rejection ratio is

  equal to the common-mode voltage gain.
  equal to the voltage gain.
  very low.
  as high as possible.

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Analog Electronics
The base of an npn transistor is thin and

 doped by a pentavalent material.
 heavily doped.
  lightly doped.
 metallic.

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