Analog Electronics
In CB configuration, the output V-I characteristics of a transistor are drawn by taking

  VCB versus IC for constant IE.
  VCB versus IB for constant IE.
  VCE versus IC for constant IE.
  VCB versus IB for constant IE.

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Analog Electronics
The common-source JFET amplifier has

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

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