Question

Barkhausen criteria states phase of loop gain must be 0 for a self sustaining oscillator.

(a) True

(b) False

I got this question during an interview for a job.

My query is from Oscillators topic in chapter Power Amplifiers of Electronic Devices & Circuits

Answer 1

Right choice is (a) True

To explain I would say: For an oscillator circuit, the phase of loop gain must be equal to zero or integral multiple of 2nπ.