Suppose a certain class of error amplifi ers offers open-loop gains that, due to fabrication and environmental variations as well as aging, can drop to as little as 10% of their nominal values....

Suppose a certain class of error amplifi ers offers open-loop gains that, due to fabrication and environmental variations as well as aging, can drop to as little as 10% of their nominal values. Specify a and b such that A 5 100.0 V/V for a nominal open-loop gain of a, and A drops only by 1% when a drops to 10% of its nominal value. (b) What is A if a has twice its nominal value? What is the % change of A?