Problem 3 Calculate the electrical currents i1, 12, 13, 14 in the circuit shown in Fig. 1, see lecture #7 for details. r3 [ 18 17 n Figure 1: A resistor network with two voltage sources, where V = 15 V, V = 55 V, r= 5 N, T = 10 N, T3 = 3 , r4 = 6 N, T5 = 7, r6 = 9, r7 = 13 N, rg = 78 N. r+1+r4 -12 0 -TA The currents can be determined from the solution of the following system of linear equations (lec- ture#7) (Eq. (1)): -72 12 +13 +r5 -75 0 2 0 -75 75+77 +78 -77 -T4 0 -17 r4 +r6+r7 24 [T] 0 (1) [A] [b] Use the Jacobi iteration method carrying out seven iterations. Lecture's and seminar's codes can be used. - If you use a calculator write all steps. If you use MATLAB, print your code or the list of commands you used. Print results for every iteration including residuals for each equation. Use 'format short'. Any MATLAB codes from lectures and seminars can be used to solve this problem.