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Analog Electronics

Analog Electronics
An n- channel JFET has IDSS=2mA,and Vp=-4v.Its transconductance gm=in mA/V)for an applied gate to source voltage VGS=-2v is

1
0.75
0.25
0.5

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Analog Electronics
For emitter bias, the voltage at the emitter is 0.7 V less than the

 collector voltage.
 emitter voltage.
  base voltage.
 ground voltage.

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Analog Electronics
Which of the following amplifier circuit using junction transistor has the best gain?

Common base
All have the same gain
Common collector
Common emitter

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Analog Electronics
In a MOSFET, the polarity of the inversion layer is the same as that of the

  minority carriers in the drain .
  majority carries in the source .
  charge on the gate electrode.
  majority carries in the substrate.

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Analog Electronics
What is mean by the outermost orbit of an atom ?

 Energy band
 Conduction band
 Valence orbit
None of these

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Analog Electronics
The input stage of an op amp is usually a

  differential amp.
  CE amplifier.
  swamped amplifier.
  class B push-pull amplifier.

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