engineering recuitment PGCIL Junior Technician Trainee (Electrician) Mock Test 2023 Analog Electronics Oscillators and Feedback Amplifier Oscillator Basics
Which of the following criteria should be satisfied in order to use an amplifier as an oscillator?
1
Aβ < 1, Loop phase shift = 360°
2
Aβ = 0, Loop phase shift = 270°
3
Aβ = 1, Loop phase shift = 360°
4
Aβ > 1, Loop phase shift = 180°