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Analog Electronics

Analog Electronics
The base-emitter voltage of the second approximation is

 1 V.
 0.3 V.
 0 V.
  0.7 V.

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Analog Electronics
The AC base voltage of an emitter follower is across the

 DC emitter resistor.
 emitter diode.
  emitter diode and external AC emitter resistance.
 load resistor.

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Analog Electronics
The base of an npn transistor is thin and

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

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Analog Electronics
In a nonlinear op-amp circuit, the

  output shape is the same as the input shape.
  opamp may saturate.
  opamp never saturates.
  feedback loop is never opened.

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Analog Electronics
A JFET can operate in

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

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Analog Electronics
Which of following is the point of reference JFET?

  Gate.
  Source.
  Drain.
  None of above.

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