Part B: The loop gain function (T = BA) is given by Hartz in lo TIA)- a) If the low-frequency closed-loop gain is 10, is this amplifier stable? b) Sketch the Nyquist plot. c) If the amplifier is stable, determine the phase margin. If it is not stable, insert a dominant pole uch that the phase margin is 45 degrees. Assume the original poles are fixed. What is the dominant pole frequency? Answers: b) Provide the sketch: ble? yes: c) no: If yes, what is the phase margin? If no, what is the required dominant pole frequency for compensation? Computations