1.

Transfer function \(\frac{{C\left( s \right)}}{{R\left( s \right)}}\) of the system shown in the figure here is:

A. \(\frac{{{G_a}{G_b}}}{{{H_a}\left( {1 + {G_a}{G_b}{H_b}} \right)}}\)
B. \(\frac{{{G_a}{G_b}}}{{1 + {G_a}{G_b}{H_a}{H_b}}}\)
C. \(\frac{{{G_a}{G_b}{H_b}}}{{{H_a}\left( {1 + {G_a}{G_b}{H_b}} \right)}}\)
D. \(\frac{{{G_a}{H_b}}}{{{H_a}\left( {1 + {G_a}{G_b}{H_b}} \right)}}\)
Answer» E.


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