What is the relationship between the Amplitude Ratios for the separate processes and when they are joined in series?
You should have noticed that the amplitude ratio for the time delay and lag in series is the same as the smplitude ratio for the single lag.
What is the relationship between the Phase Angles for the separate processes and when they are joined in series?
In this case the phase angles for the lag and delay separately add together to give the phase angle for the two things in series.
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