Consider the electrical network shown in the figure in state space, where iR(t) is the output. The state vectors are [V1 i3].
And the state model of the above systems is given by
\(\dot x = \left[ {\begin{array}{*{20}{c}} a&{b}\\ {c}&{d} \end{array}} \right]x + \left[ {\begin{array}{*{20}{c}} {e}\\ f \end{array}} \right]{V_i},\;\;y = \left[ {4\;\;1} \right]x\). Then \(\frac{d}{b}=\)_______
Enter numerical value using the virtual keypad. Round off where necessary.