Question: (a) The closed-loop gain of a feedback amplifier using an ideal feedback amplifier ((A ightarrow infty)) is (A_{f}=125). What is the value of (beta)

(a) The closed-loop gain of a feedback amplifier using an ideal feedback amplifier $(A \rightarrow \infty)$ is $A_{f}=125$. What is the value of $\beta$ ?

(b) If the basic amplifier has a finite open-loop gain, what must be the value of $A$ such that the closed-loop gain is within 0.25 percent of the ideal value. Use the results of part (a).

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