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1. |
Consider a feedback control system:The root locus of the system has which of the following characteristics? |
A. | Root loci exist on the negative real axis between -2 and -1 and between -3 and -∞. When K → ∞, the root loci terminate at s = -2 and s = -3 |
B. | Root loci exist on the negative real axis between 0 and -1 and between -2 and -3. When K → ∞, two roots are going to - ∞ |
C. | Root loci exist on the negative real axis between 0 and -1 between -2 and -3. When K → ∞, two roots are going to ∞. |
D. | Root loci exist on the negative real axis between 0 and -1 and between -2 and -3. When K → ∞, the root loci terminate at s = -2 and s = -3 |
Answer» E. | |