Consider the ideal inverting op-amp circuit shown in Figure 9.8. Determine the voltage gain \(A_{v}=v_{O} / v_{I}\) for

(a) \(R_{2}=200 \mathrm{k} \Omega, R_{1}=20 \mathrm{k} \Omega\);

(b) \(R_{2}=120 \mathrm{k} \Omega, R_{1}=40 \mathrm{k} \Omega\); and

(c) \(R_{2}=40 \mathrm{k} \Omega, R_{1}=40 \mathrm{k} \Omega\).

Figure 9.8:-

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R ww (2) R ww Figure 9.8 Inverting op-amp circuit VO