The closed loop gain of an inverting and non -inverting of an op amp are equal when the external input resistor and the feedback resistor are equal.

Question

Quizplus · Accepted Answer

The closed-loop gain of an inverting op-amp configuration is given by -Rf/Rin, where Rf is the feedback resistor and Rin is the input resistor. For a non-inverting configuration, the gain is given by 1 + Rf/Rin. Therefore, even if Rf and Rin are equal, the gains are not the same due to the different formulas and the presence of the "+1" in the non-inverting configuration's gain formula.

The Closed Loop Gain of an Inverting and Non -Inverting