Question

10 kS2 OA1 VoUT OA2 10 k2 10 kΩ 90 kΩ 10 k2 5 V The circuit above is commonly used in mechanical and civil engineering for strain measurements. The OA1 feedback resistance consists of a strain gauge sensor with a resistance of 10 k2+ AR, where ΔR represents a change in resistance proportional to the amount of mechanical strain on the sensor. (a) Derive an expression for VouT in terms of AR. (b) what is the value of VOUT if ΔR-1000 Ω? (c) Assume that both op amps have power supply connections [not shown) of +12 V and-12 V, respectively. If it is required that neither op amp saturate during normal operation, what is the maximum positive value of AR that can be sensed with this circuit?

Please show all work so I can understand.

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