engineering recuitment UPCL AE (E&M) 2021 Mock Test Control Systems Signal Flow Graph and Block Diagram
The closed-loop transfer function C(s)/R(s) of the system represented by the block diagram in the figure is
1
\(\frac{1}{{{{\left( {s + 1} \right)}^2}}}\)
2
\(\frac{1}{{s + 1}}\)
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s + 1
4
1