Analog Electronics
Which of these is the best description of a zener diode?

  It is a constant voltage device.
  It works in the forward region.
  It is a constant electric current device.
  It is a rectifier diode.

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Analog Electronics
The common-source JFET amplifier has

  no voltage gain.
  a very high input impedance and a relatively low voltage
  a high input impedance and a very high voltage gain.
  a high input impedance and a voltage gain less than 1.

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