(b) For the feedback amplifer circuit shown in Fig. 4 identify the feedback topology and determine the basic amplifier gain A closed loop gain
A_(F),R_(IF)
and
R_(OF)
. The amplifier has
R_(S)=600\Omega
,
R_(i)=500\Omega ,R_(0)=20k\Omega ,R_(1)=1k\Omega ,R_(2)=50k\Omega ,R_(L)=2k\Omega
and
g_(m)=100mS
. Fig. 4