[Graphics:Images/KirchoffMod_gr_1.gif]

Example 1.   Solve the network #1 for the currents  [Graphics:Images/KirchoffMod_gr_3.gif]  given the following value for the resistors and battery:  

        [Graphics:Images/KirchoffMod_gr_4.gif].  

Solution 1.

Set up the equations.

[Graphics:../Images/KirchoffMod_gr_5.gif]



[Graphics:../Images/KirchoffMod_gr_6.gif]

[Graphics:../Images/KirchoffMod_gr_7.gif]

Make the substitutions for the resistors and batteries.  

[Graphics:../Images/KirchoffMod_gr_8.gif]



[Graphics:../Images/KirchoffMod_gr_9.gif]

[Graphics:../Images/KirchoffMod_gr_10.gif]

[Graphics:../Images/KirchoffMod_gr_11.gif]

[Graphics:../Images/KirchoffMod_gr_12.gif]

We are done.

Aside.  The solution could be found using Cramer's rule.

[Graphics:../Images/KirchoffMod_gr_13.gif]


[Graphics:../Images/KirchoffMod_gr_14.gif]

[Graphics:../Images/KirchoffMod_gr_15.gif]

[Graphics:../Images/KirchoffMod_gr_16.gif]

[Graphics:../Images/KirchoffMod_gr_17.gif]


[Graphics:../Images/KirchoffMod_gr_18.gif]


[Graphics:../Images/KirchoffMod_gr_19.gif]

[Graphics:../Images/KirchoffMod_gr_20.gif]

[Graphics:../Images/KirchoffMod_gr_21.gif]


[Graphics:../Images/KirchoffMod_gr_22.gif]


[Graphics:../Images/KirchoffMod_gr_23.gif]

[Graphics:../Images/KirchoffMod_gr_24.gif]

[Graphics:../Images/KirchoffMod_gr_25.gif]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(c) John H. Mathews 2004