railway RRB JE (CBT I + CBT II) Mock Test 2024 Analog Electronics Oscillators and Feedback Amplifier Feedback Amplifier
In an amplifier with input impedance Zi and output impedance Zo, when a current series feedback is introduced
1
Zi increases, Zo decreases
2
Zi decreases, Zo increases
3
Zi increases, Zo increases
4
Zi decreases, Zo decreases