Consider an ideal op-amp used in an inverting configuration as shown in Figure 9.8. Determine the closed-loop voltage gain for the following resistor values.

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

(b) \(R_{1}=20 \mathrm{k} \Omega, R_{2}=20 \mathrm{k} \Omega\)

(c) \(R_{1}=20 \mathrm{k} \Omega, R_{2}=4 \mathrm{k} \Omega\)

(d) \(R_{1}=50 \mathrm{k} \Omega, R_{2}=500 \mathrm{k} \Omega\)

(e) \(R_{1}=50 \mathrm{k} \Omega, R_{2}=100 \mathrm{k} \Omega\)

(f) \(R_{1}=50 \mathrm{k} \Omega, R_{2}=50 \mathrm{k} \Omega\)

Figure 9.8:-

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R www 2 R ww Figure 9.8 Inverting op-amp circuit