(a) An inverting amplifier with resistors \(R_{1}=5.6 \mathrm{k} \Omega\) and \(R_{2}=120 \mathrm{k} \Omega\) is fabricated using an op-amp with an open-loop gain of \(10^{5}\). What is the percent difference between the actual gain and the ideal gain?

(b) Repeat part (a) if \(R_{1}\) is changed to \(R_{1}=8.2 \mathrm{k} \Omega\).