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  3. (3)a. briefly explain the main application of posi

(3)a. Briefly explain the main application of positive feedback system (b) Voltage gain of an amplifier without...

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Physics

(3)a. Briefly explain the main application of positive feedbacksystem

(b) Voltage gain of an amplifier without feedback is 60dB. Itdecreases to 40dB with feedback. Calculate the feedback factor.

(c) What is the function of zero crossing detector and itspractical applications

Answer & Explanation Solved by verified expert
4.1 Ratings (857 Votes)
3 a If feedback bis provided in such a way that it is inphase with the input signal and thus resulting in an increase ofinput signal is known as positive feedbackOne of    See Answer
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