15 Using a Nichols chart, determine the gain and phase margin of the system in Figure 10 38 with loop gain transfer function 8s 1 L(s) G(s)G(s) s(s 2s 4) a G M 20 4 dB, P M 58 1 b G M 0 dB, P M 47 c G M 6 dB, P M 45 d G M dB, P M 23

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15  Using a Nichols chart, determine the gain and phase margin of the system in Figure 10 38 with loop gain transfer function 8s  1 L(s)   G(s)G(s)   s(s 2s 4)  a  G M    20 4 dB, P M    58 1    b  G M    0 dB, P M    47 c  G M    6 dB, P M    45 d  G M   dB, P M    23

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Question: 15. Using a Nichols chart, determine the gain and phase margin of the system in Figure 10.38 with loop gain transfer function 8s +1 L(s)

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