Answer Happy

a For each of the following questions, give short and precise answers. f) What effect of the lag compensator we use to achieve a better Phase Margin within a unity feedback loop system? g) Can we implement a PD controller (a simple zero) with only passive circuit components ? Explain briefly h) How is the high frequency gain affected when we place a Lead compensator in a unity feedback control system ? i) How is damping affected, when the imaginary part of a complex dominant closed loop pole increases ? j) For a unity feedback system, how is bandwidth affected when the gain crossover frequency is increased ?