GATE Electrical Engineering (EE) 2014 Shift 1 Solved Paper

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Question : 28 of 65

Marks: +1, -0

The root locus of a unity feedback system is shown in the figure

The closed loop transfer function of the system is

$\;{C\;(s)\;}/{R\;(s)\;} = \;{K}/{\;(s\;+\;1)\;\;(s\;+\;2)\;}$
$\;{C\;(s)\;}/{R\;(s)\;} = \;{−K}/{\;(s\;+\;1)\;\;(s\;+\;2)\;\;+\;K}$
$\;{C\;(s)\;}/{R\;(s)\;} = \;{K}/{\;(s\;+\;1)\;\;(s\;+\;2)\;\;+\;K}$
$\;{C\;(s)\;}/{R\;(s)\;} = \;{K}/{\;(s\;+\;1)\;\;(s\;+\;2)\;−K}$

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