EC > GATE 2023 > Feedback Amplifiers
A cascade of common-source amplifiers in a unity gain feedback configuration oscillates when
A
the closed loop gain is less than 1 and the phase shift is less than 180o.
B
the closed loop gain is greater than 1 and the phase shift is less than 180o.
C
the closed loop gain is less than 1 and the phase shift is greater than 180o.
D
the closed loop gain is greater than 1 and the phase shift is greater than 180o.

Correct : d

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