railway RRB Technician Grade 1 Mock Test 2024 Analog Electronics Oscillators and Feedback Amplifier Feedback Amplifier
The output impedance of a voltage series feedback is 10 Ω, If the gain of the basic amplifier is 100 and feedback fraction is 0.01, what is the output impedance without feedback?
1
20 Ω
2
30 Ω
3
35 Ω
4
25 Ω