Tlie 220 ki l feedback resistor in the circuit in Fig. P5.14 is replaced by a variable
Chapter 5, Problem 5.15(choose chapter or problem)
Tlie 220 ki l feedback resistor in the circuit in Fig. P5.14 is replaced by a variable resistor Rf. The voltages v.d- vd have the same values as given in 5.14(a). a) What value of Rf will cause the op amp to saturate? Note that 0 < Rf < oo. b) When Rf has the value found in (a), what is the current (in microamperes) into the output terminal of the op amp?
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