An engineer designs an amplifier to have a voltage gain of 60, but when constructed it only had a gain of 50. What value of feedback will double the gain?

An engineer designs an amplifier to have a voltage gain of 60, but whe

1.	An engineer designs an amplifier to have a voltage gain of 60, but when constructed it only had a gain of 50. What value of feedback will double the gain?
A.	+0.5%
B.	+0.66%
C.	+1%
D.	+3.3%
Answer» D. +3.3%