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If open loop gain and feedback ratio of ...

If open loop gain and feedback ratio of a positive feedback oscillator are A are r respectively then closed loop gain `A_(f)` is

A

1

B

`lt`A

C

`lt`Ar

D

infinity

Text Solution

Verified by Experts

The correct Answer is:
D
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Knowledge Check

  • Statement I : The frequency of the output signal from a feedback oscillator depends on its feedback ratio. Statement II : A feedback oscillator circuit is made in such a way that the closed loop gain of the amplifier reaches to an infinite value.

    A
    Statement I is true statement II is true, statement II is a correct explanation for statement I.
    B
    Statement I is true statement II is true, statement II is not a correct explanation for statement I.
    C
    Statement I is true statement II is false.
    D
    Statement I is false statement II is true.

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