The circuit shown in Fig. P2.51 utilizes a 10-k
Chapter 2, Problem 2.51(choose chapter or problem)
The circuit shown in Fig. P2.51 utilizes a 10-k potentiometer to realize an adjustable-gain amplifier. Derive an expression for the gain as a function of the potentiometer setting x. Assume the op amp to be ideal. What is the range of gains obtained? Show how to add a fixed resistor so that the gain range can be 1 to 11 V/V. What should the resistor value be?
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