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Home/2.30 Consider the circuit in Fig. 2.8 with R1 = R2 = R4 = 2 MΩ, and assume the op amp to be ideal. Find values for R3 to obtain the following gains: (a) −50 V/V (b) −20 V/V (c) −5V/V (a) 41.67 kΩ; (b) 111.1 kΩ; (c) 667.7 kΩ

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2.30 Consider the circuit in Fig. 2.8 with R1 = R2 = R4 = 2 MΩ, and assume the op amp to be ideal. Find values for R3 to obtain the following gains: (a) −50 V/V (b) −20 V/V (c) −5V/V (a) 41.67 kΩ; (b) 111.1 kΩ; (c) 667.7 kΩ

2.30 Consider the circuit in Fig. 2.8 with R1 = R2 = R4 = 2 MΩ, and assume the op amp to be ideal. Find values for R3 to obtain the following gains: (a) −50 V/V (b) −20 V/V (c) −5V/V (a) 41.67 kΩ; (b) 111.1 kΩ; (c) 667.7 kΩ

2.30 Consider the circuit in Fig. 2.8 with R1 = R2 = R4 = 2 MΩ, and assume the op amp to be ideal. Find values for R3 to obtain the following gains: (a) −50 V/V (b) −20 V/V (c) −5V/V (a) 41.67 kΩ; (b) 111.1 kΩ; (c) 667.7 kΩ

2.30 Consider the circuit in Fig. 2.8 with R1 = R2 = R4 = 2 MΩ, and assume the op amp to be ideal. Find values for R3 to obtain the following gains: (a) −50 V/V (b) −20 V/V (c) −5V/V (a) 41.67 kΩ; (b) 111.1 kΩ; (c) 667.7 kΩ