Analog Electronics
Thermal runaway is not possible in FET because as the temperature of FET increases

None of these
The drain current increases
The mobility decreases
The transconductance increases

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

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

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Analog Electronics
In a transistor amplifier, the reverse saturation electric current ICO

  double for every 1° rise in temperature.
  double for every 10° rise in temperature.
  double for every 5° rise in temperature.
  increase linearly with the temperature.

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