(Solved): Solve using MATLAB. Also, solve using handwritten solutions. Signal-flow graphs may be used to s ...

Solve using MATLAB. Also, solve using handwritten solutions.

Signal-flow graphs may be used to solve a variety of electric network problems. Shown in the figure is the equivalent circuit of an electronic circuit. The voltage source \( e_{\&}(t) \) represents a disturbance voltage. The objective is to find the value of the constant \( k \) so that the output voltage eo(t) is not affected by \( e_{d}(t) \). To solve the problem, it is best to first write a set of cause-and-effect equations for the network. This involves a combination of node and loop equations. Then construct an SFG using these equations. Find the gain \( e_{e} / e_{d} \) with all other inputs set to zero. For \( e_{d} \) not to affect \( e_{o} \), set \( e_{o} / e_{d} \) to zero.