Referring to this figure, calculate the amplification gain with feedback for the following circuit values: R1 = 80 k, R2 = 20 k, Ro = 10 k, RD = 61 k, and gm = 4000 S.

Referring to this figure, calculate the amplification gain with feedba

1.	Referring to this figure, calculate the amplification gain with feedback for the following circuit values: R1 = 80 k, R2 = 20 k, Ro = 10 k, RD = 61 k, and gm = 4000 S.
A.	4.36
B.	4.25
C.	6.35
D.	20.85
Answer» B. 4.25