engineering recuitment BHEL Engineer Trainee Mock Test 2025 Analog Electronics Oscillators and Feedback Amplifier Oscillator Basics
Which of the following is true as per Barkhausen criteria for sustainable oscillations for amplifier gain of A and the feedback β of the feedback network?
1
A ≥ (1/β)
2
A < (1/β)
3
Aβ = 0
4
A ≥ β