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Question

Mathematics Question on Complex Functions

The signal flow diagram shown represents a feedback system subjected to a disturbance W (s). The transfer function relating output y(s) to w(s) with reference [R (s)= 0], is:-
The signal flow diagram shown

A

G1G21+G1G2\frac{G_1G_2}{1+G_1G_2}

B

G1G21−G1G2\frac{G_1G_2}{1-G_1G_2}

C

G21+G1G2\frac{G_2}{1+G_1G_2}

D

G21−G1G2\frac{G_2}{1-G_1G_2}

Answer

G21+G1G2\frac{G_2}{1+G_1G_2}

Explanation

Solution

The correct option is(C): G21+G1G2\frac{G_2}{1+G_1G_2}