# Mesh Analysis Question

by Novark
Tags: analysis, mesh
 P: 15 I understand everything up to the point which I've marked in red... Can anyone explain those few lines? I would greatly appreciate it! Thanks.
 P: 4 Seems like KCL (Kirchoff's Current Law) at node A. i1 = i0 + i2 (sum of currents entering) = (sum of currents leaving)
P: 15
 Quote by muhandis Seems like KCL (Kirchoff's Current Law) at node A. i1 = i0 + i2 (sum of currents entering) = (sum of currents leaving)
I understand that part, but how did they derive the equation below that line?

P: 4

## Mesh Analysis Question

They just substituted into the equation above.
P: 15
 Quote by muhandis They just substituted into the equation above.
Oh, I see it now. I totally misunderstood the fact that they were simply substituting i0 = i1 - i2 into the third mesh equation.

Thanks :-)

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