Assume that the ideal op amp in the circuit in Fig. P5.40

Chapter 5, Problem 5.40

(choose chapter or problem)

Assume that the ideal op amp in the circuit in Fig. P5.40 is operating in its linear region. a) Calculate the power delivered to the 16 k resistor. b) Repeat (a) with the op amp removed from the circuit, that is, with the 16 k resistor connected in the series with the voltage source and the 48 k resistor. c) Find the ratio of the power found in (a) to that found in (b). d) Does the insertion of the op amp between the source and the load serve a useful purpose? Explain. Figure P5.4048 kSo

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