GATE Electronics and Communications (EC) 2011 Solved Paper

Question : 60 of 65

Marks: +1, -0

The input-output transfer function of a plant

H (s) = \;{100}/{s\;(s\;+\;10)\;^{2}}\:.

The plant is placed in a unity negative feedback configuration as shown in the figure below.

The gain margin of the system under closed loop unity negative feedback is

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