the block diagram of such a system. Assuming Ka \begin{array}{l} =10, T_{a}=0.1, K_{e}=1, T_{e}=0.4, K_{g}=1 \\ T_{g}=1, K_{S}=1, T_{s}=0.001, \text { and the } \\ \text { controller, } G_{P I D}(s)=1.6+\frac{0.4}{s}+0.3 s \end{array} find the closed-loop transfer function, T(s)=\frac{\Delta V_{t}(s)}{\Delta V_{r e f}(s)}, \text { of the system } expressing it as a rational function.
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