Assume the input resistance of the op amp in Fig. P5.47 is
Chapter 5, Problem 5.47(choose chapter or problem)
Assume the input resistance of the op amp in Fig. P5.47 is infinite and its output resistance is zero. a) Find v as a function of vg and the open-loop gain A. b) What is the value of vg if v = 1V A = 150 ? c) What is the value of vg if v = 1V A = ? d) How large does A have to be so that v is 99% of its value in (c)?
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