Analog Electronics
Suppose the base resistor is open. The Q point will be

 off the load line.
  at the lower end of the load line.
 at the upper end of the load line.
 in the middle of the load line.

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Analog Electronics
The common-source JFET amplifier has

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

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