Much attention has been given by researchers to negative feedback processes, because negative feedback processes lead systems towards equilibrium states. Positive feedback reinforces a given tendency of a system and can lead a system away from equilibrium states, possibly causing quite unexpected results. Example for negative feedback and positive feedback: Example for ?ve feedback is Amplifiers. Example for +ve feedback is Oscillators
The big advantage over positive feedback is only gain of nagative feedback is high over it
the negative feedback has more advantages.they are 1.it has more stability. 2.it increases the bandwidth. 3.it reduces the noise. but only the disadantage of negative feed back over positive feed back is it decreases the gain.