For the system in the given figure. The transfer function C(s)/R(s) is

1.

For the system in the given figure. The transfer function C(s)/R(s) is

12-20

[A].	G1 + G2 + 1
[B].	G1 G2 + 1
[C].	G1 G2 + G2 + 1
[D].	G1 G2 + G1 + 1

Answer: Option C

Explanation:

Transfer function = (G₁ + 1) G₂ + 1 = G₁ G₂ + G₂ + 1.

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