railway RRB JE (CBT I + CBT II) Mock Test 2024 Analog Electronics Oscillators and Feedback Amplifier Feedback Amplifier
For a voltage series feedback topology, if β = 0.01. A = 50 and Ri = 2.87 kΩ. then the Rif is ______.
1
4.30 kΩ
2
3.43 kΩ
3
1.91 kΩ
4
1.78 kΩ