Chapter 3.6, Problem 9PP

By inspection, obtain the mesh-current equations for the circuit in Fig. 3.30.

Figure 3.30

For Practice Prob. 3.9.

Answer:

$\left[\begin{array}{rrrrr}\hfill 150& \hfill -40& \hfill 0& \hfill -80& \hfill 0\\ \hfill -40& \hfill 65& \hfill -30& \hfill -15& \hfill 0\\ \hfill -0& \hfill -30& \hfill 50& \hfill 0& \hfill -20\\ \hfill 80& \hfill -15& \hfill 0& \hfill 95& \hfill 0\\ \hfill 0& \hfill 0& \hfill -20& \hfill 0& \hfill 80\end{array}\right]\left[\begin{array}{c}{i}_1\\ i_2\\ i_3\\ i_4\\ i_5\end{array}\right]=\left[\begin{array}{r}\hfill 30\\ \hfill 0\\ \hfill -12\\ \hfill 20\\ \hfill -20\end{array}\right]$