E8 14 Consider the nonunity feedback system in Figure E8 14, where the controller gain is K 2 Sketch the Bode plot of the loop transfer function Determine the phase of the loop transfer function when the magni tude 20 log L j ( ) 0 dB Recall that the loop trans fer function is L s ( ) G s c ( ) G s ( ) H s ( ) FIGURE E8 14 Nonunity feedback system with controller gain K R(s) Controller, G(s) K Sensor, H(s) 10 s 10 Process, G(s) 1 Y(s) s 1 45 1

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E8 14 Consider the nonunity feedback system in Figure E8 14, where the controller gain is K   2  Sketch the Bode plot of the loop transfer function  Determine the phase of the loop transfer function when the magni tude 20 log L j ( )    0 dB  Recall that the loop trans fer function is L s ( )   G s c ( ) G s ( ) H s ( )  FIGURE E8 14 Nonunity feedback system with controller gain K  R(s) Controller, G(s) K Sensor, H(s) 10 s 10 Process, G(s) 1 Y(s) s 1 45  1

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Question: E8.14 Consider the nonunity feedback system in Figure E8.14, where the controller gain is K = 2. Sketch the Bode plot of the loop transfer

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