Analog Electronics
The conduction loss verses device current characteristics of power MOSFET in best approximately by

 an exponentially decaying function.
 a straight line.
 a parabola.
 a rectangular hyperbola.

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

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

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