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Two feedback configurations are shown in Figures (a) and (b). The closed-loop gain in each case is Av f = vo/vi = 50.
(a) Determine β1 and β2 for the two circuits.
(b) The gain A2 decreases by 10 percent in both circuits. Using the results of part (a), determine the percent change in the closed-loop gain for each circuit.
(c) What conclusion can be made as to the "better" feedback configuration?
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