What is the expression for betashy- if ainbsp 105nbspand ai


Consider the op-amp circuit in Figure. The op-amp has a finite gain, so that io = A, and a zero output impedance.

(a) Write the closed-loop transfer function in the form

(b) What is the expression for β­?

(c) If Ai = 105 and Ai f = 25, what is the required βi and RF /R3?

(d) If Ai decreases by 15 percent, what is the percent change in Ai f?

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Electrical Engineering: What is the expression for betashy- if ainbsp 105nbspand ai
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