Trying to solve for a super mesh, where can I find a good website?
I want to learn how to do it, and find out the answer
here is the circuit I'm trying to solve
http://img186.imageshack.us/img186/5021/...
Answer:
I don't know of a site that explains how to do a super mesh but I can walk you through it . (if anyone sees a mistake please tell me as it's been a while since I've done that)
First of all in the diagram you've given us it's clear that
Ia = -1A
because it's the only current through the current source on the left and it's direction is opposite the the one drawn for Ia.
We can also state that :
Ib -Ic = 1A
because they both go through the current source to the right in opposite directions (it's actually simpler to understand if we write : Ib + (-Ic) = 1A)
Now, we need one more equation to solve for Ib and Ic.
We need to create a voltage loop that we walk around a full round.
I think the simplest one here is the one that includes the two right most parts of the circuit :
And that will be :
(We go clockwise starting from above the right most resistor) :
-1*Ic -2 -1*Ib -1 -1*Ib = 0
When we pass a resistor in the direction of the current we go down in the voltage (so we add it as a negative term that equals the total current that goes through it times the resistance). When we pass a voltage source from the (+) to the (-) we also subtract it's size and vice verse.
Now if we take the three constraints we have and solve them we'll get all three currents .
and of course :
Ix = Ia + (-Ib) .
Good Luck!
The answers post by the user, for information only, FunQA.com does not guarantee the right.
More Questions and Answers: