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CIL MT Electrical: 2017 Official Paper

Option 2 : the roots move nearer to the zeroes

- Root Locus plot is used to determine the stability of the system using the range of values of k (gain) for which the complete performance of the system will be satisfactory and the operation is stable.
**All the root loci start from the poles where k (gain) = 0 and terminates at the zeros where K tends to infinity.****Hence, on increasing the gain of the system the roots move away from the open-loop poles towards the zeros or infinity.**