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Electronic Devices and Circuits

Q1:

Barkhausen criterion of oscillation is

A Aβ > 1

B Aβ = 1

C Aβ = < 1

D Aβ ≤ 1

ANS:B - Aβ = 1

Barkhaussen criterion states that AB >=1.

If AB>1 then oscillations will start from small oscillations eventually getting to bigger oscillations.
If AB=1, then oscillations are constant, thus, when no oscillations are already present, no oscillation can happen.



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