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Amplifiers – 36

36. If voltage gain without feedback and feedback fraction are Av and mv respectively, then gain with negative voltage feedback is ……..

(a) Av/(1-Avmv)
(b) Av/(1+Avmv)
(c) (1+Avmv)/Av
(d) (1 + Av mv) Av

Answer : (b)

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