The open-loop voltage gain of an amplifier is given by [A_{v}=frac{10^{5}}{left(1+j frac{f}{10^{3}} ight)left(1+j frac{f}{10^{5}} ight)}] (a) If

The open-loop voltage gain of an amplifier is given by

\[A_{v}=\frac{10^{5}}{\left(1+j \frac{f}{10^{3}}\right)\left(1+j \frac{f}{10^{5}}\right)}\]

(a) If the low-frequency, closed-loop gain is 100 , is this amplifier stable?

(b) If so, determine the phase margin.