We know that the gain is R2/R1, and we already know what
level of gain we want, for example if we want gain of -1, then R2/R1 = 1
But what about the absolute value of R1 and R2? No matter
whether I choose R1 = R2 = 1Meg or R1 = R2 = 1Ohm, the gain is still -1. What
are the considerations involves in choosing the absolute value?
