An interactive introduction to MATLAB

74 additional exercises

7. Solving linear equations
   The electrical circuit shown in Figure 17 consists of resistors and voltage
   sources. Determine the current in each resistor using the mesh current

V 1 +

+ V 2

+ V^3

R 1

R 2 R 3

R 4

R 7

R 5

R 6

R 8

i 1

i 3

i 4

i 2

Figure 17: Network of voltage sources and resistors

method which is based on Kirchhoff’s voltage law.

V 1 =20 V V 2 =12 V V 3 =40 V

R 1 =18 Ω R 2 =10 Ω R 3 =16 Ω R 4 =6 Ω

R 5 =15 Ω R 6 =8 Ω R 7 =12 Ω R 8 =14 Ω