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Amplifier gain for RC phase shift oscillation, to obey Barkhausen’s criteria should be minimum of ___________

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Amplifier gain for RC phase shift oscillation, to obey Barkhausen’s criteria should be minimum of ___________

(a) 43

(b) 4

(c) 10

(d) 29

I had been asked this question by my school principal while I was bunking the class.

My question is based upon RC Phaseshift Oscillator in chapter Oscillators of Analog Circuits

1 Answer

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Best answer
Right answer is (d) 29

To explain: Amplifier gain should be a minimum of 29 or else Aβ will be less than one.

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