Consider a control system shown in given figure. For slight variation – McqOptions

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1.	Consider a control system shown in given figure. For slight variation in G, the ratio of open loop sensitivity to closed loop sensitivity will be given by
A.	1 : (1 + GH)
B.	1 : (1 + GH)- 1
C.	1 : (1 - GH)
D.	1 : (1 - GH)- 1
Answer» C. 1 : (1 - GH)

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