EC > GATE 2015 SET-2 > Control Systems

Contributed by: Dr. Sarah Chen

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For the signal flow graph shown in the figure, the value of ^C(s)⁄_R(s) is

A

(A) ^{G₁G₂G₃G₄}⁄_{1−G1G2H1−G3G4H2−G2G3H3+G1G2G3G4H1H2}

B

(B) ^{G₁G₂G₃G₄}⁄_{1+G1G2H1+G3G4H2+G2G3H3+G1G2G3G4H1H2}

C

(C) ¹⁄_{1+G1G2H1+G3G4H2+G2G3H3+G1G2G3G4H1H2}

D

(D) ¹⁄_{1−G1G2H1−G3G4H2−G2G3H3+G1G2G3G4H1H2}

Check Answer

Explanation

Correct : b

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