Analog Electronics
The negative part of the output signal in a transistor circuit starts clipping if the Q point of the circuit moves

  toward the saturation point.
None of these
  toward the cutoff point.
  toward the center of the load line.

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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 voltage gain less than 1.
  a high input impedance and a very high voltage gain.

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