Analog Electronics
For a JEFT, when VDS is increased beyond the pinch-off voltage, the drain electric current

  increased.
  decreases.
  remains constant.
  first increase and then decreased.

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Analog Electronics
Voltage Series (feedback also called series-shunt feedback) results in

Decrease in input impedance & increase in output impedance
Increase in both input & output impedances
Decreases in both input & output impedances
Increase in input impedance & decreases in output impedance

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