Analog Electronics
Which of the following is expected to have highest input impedance?

  CE bipolar transistor.
  JEFT amplifier.
  MOSFET.
  Common collector bipolar transistor

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Analog Electronics
The common-source JFET amplifier has

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