Assume that the ideal op amp in the circuit in Figure. 1 is operating in its linear region...

Assume that the ideal op amp in the circuit in Figure. 1 is operating in its linear region.

a) Calculate the power delivered to the 16 kΩ resistor.

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b) Repeal (a) with the op amp removed from the circuit, that is, with the 16 kΩ resistor connected in the series with the voltage source and the 48 kΩ resistor.

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c) Find the ratio of the power found in (a) to that found in (b).

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d) Does the insertion of the op amp between the source and the load serve a useful purpose? Explain.

Figure. 1