Analog Electronics
The Q-point in a voltage amplifier is selected in the middle of the active region because

  it gives better stability.
  the biasing circuit then need less number of resistors.
  the circuit needs a small.
  it gives distortions less output.

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP