I need help with applying Kirchhoff's laws in a circuit. I need someone to give me a structured approach. My professor bounced around on this lecture and left me behind on one of the bounces. I have pictures of some example problems.... I will start with the easy one.... but if anyone has a link to a structured approach to applying Kirchhoff's laws, or can explain one please please help.

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chrisplusian · Answer

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chrisplusian · Answer

@Vincent-Lyon.Fr Are you good with Kirchhoff's laws? Could you help me? I have been looking for resources on this material, but I am not finding what I need.

vincent-lyon.fr · Answer

I do not need i2

Simply solve:  $\sum_{each\;loop} ddp=0$

$10-2i_1-8(i_1-i_3)=0$
$6-8(i_3-i_1)-4i_3=0$

chrisplusian · Answer

This is an example of how my professor tied to show us but after he wrote down the first loop he jumped to showing us "mesh Currents", he made it obvious that he was not looking for questions

chrisplusian · Answer

here is one other example that I have tried to work out and I couldn't get the right answer..

chrisplusian · Answer

I have read two different versions of schaums outlines, my text, and numerous other online articles. I think I am getting them all confused. So I am trying to get someone to give me a detailed (hopefully by steps) explanation of how to solve these. Something like...
Step 1) If you only have voltage sources use KVL.
Step 2) If you only have current sources use KCL.
Step 3) If you have both current and voltage sources Apply KVL first, then KCL, finally solve as a matrix.

I don't know if any of what I just wrote is correct but I am so lost its crazy. I have to take this as a summer class at my university to get into the Electrical Engineering program, and It is kicking my butt. If you are able to do something above and then maybe show me the application of those steps on a few examples (doesn't have to be the ones I posted) I would forever be grateful. I have to go to work now but I will check this again when I get back. I will only be there for two hours today. Thanks for your help one way or the other.

vincent-lyon.fr · Answer

What you have written for no4 is ok so far.
Other equations are:

$4(i_2-i_1)-2i_2-5(i_2-i_3)=0$
$5(i_3-i_2)-9i_3=0$

For no1, I'll have to rake my long-term memory ;-)
Will get back to you later.