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Analog Electronics

Analog Electronics
The knee voltage (cut in voltage) of silicon diode

  0.8 V.
  0.7 V.
  0.2 V.
  1.0 V.

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

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

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Analog Electronics
What is the input impedance of a common-gate configured JFET?

  Low.
  High.
  Very low.
  Very high.

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Analog Electronics
What is true about the breakdown voltage in a zener diode?

  It destroys the diode.
  It equals the electric current times the resistance.
  It is approximately constant.
  It decreases when electric current increases.

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Analog Electronics
The amount of time between the creation and disappearance of a free electrons is called

 recombination
 life time of the carriers
 drift velocity
 bound electrons

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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
0.25
0.5
0.75

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