a. Using Experiment 3A, what is the gain margin with the default settings? What is this on

Question:

a. Using Experiment 3A, what is the gain margin with the default settings? What is this on the linear scale? 

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b. What gain of G would cause instability?

c. What gain of G will yield 3 dB of GM? Install this gain and comment on the step response. How much peaking does this cause?

d. Compare Questions 1c and 2c and draw a conclusion.

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