📚 Use matrices to solve electrical circuits

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Analyze the given electrical circuit by finding the unknown currents.

Kirchhoff’s Current and Voltage Laws, and Ohm's law:

• Current law: The sum of the currents flowing into any node is equal to the sum of the currents flowing out

• Voltage law: In a closed loop, the sum of the voltage that drops across a resistor (R), an inductor (L), and a capacitor (C), must be the same as the voltage source applied to that RLC circuit.
Ohm’s Law states that the voltage drop across a resistor is V=IR

[alecfaye]

"Use matrices to solve electrical circuits"
Doesn't use a matrix to solve for it.

[fajardojessejamesb.]

Dude said how to use mareices and litteraly doesnt do so. A waste of my time

[shubanman]

great explanation, completely understand the physics and math behind it, really thank you

[Oramosengr]

At 5:00 the matrix is available. From there you can go and input the matrix into MATLAB, or do this by hand and find RREF. This will give you the values for all unknown currents. I can share my project report I am working on that explains a lot of steps. I note in several places extended details and explanations and step by step row reduction to solve.

Also, in most linear algebra books, RREF, reduced, row echelon in matrices/Gaussian elimination is explained in Chapter 1.2. My textbook is Linear Algebra with Applications, 9th Edition, Steven J. Leon. If I had not learned matrices well this semester, I would be confused too.

[Mafior]

I hate to be that guy, but if I5 = I6 + I3 then 1 = I6 + 0.5 --> I6 = 0.5
But also I2 + I6 = I1 then 0.5 + I6 = 2 --> I6 = 1.5
There's a mistake somewhere :/ I think it's at I3, because current is going from B to D thanks to source at L1, but also going from D to B thanks to source at L3. If i'm not mistaken, you have to take that into consideration. Feel free to correct me, i am curious about the correct answer. :)

[trevorstubbs]

*tries to learn how to use matrices to solve a circuit* *finds video called "Use matrices to solve electrical circuits"* *video doesnt use matrices*

[NhatNguyen__]

What if 2 sources have different voltage?

[Valkarons]

Wouldn't it just be simpler to have I_5 * 20 = 20?

[allenbrown]

you didnt use matrices you should be honest and say you didn't know how other than choosing a problem you can solve without matrices and I think you messed up a few of your equations

[jodysschoolchannel]

As an ADHD sufferer watching videos to try and catch up in class, your addition of "LIKE" and "GO TO WEBSITE" and all the other visual clutter made your video unwatchable for me. Also, the title says "Use matrices to solve electrical circuits" but you didn't actually do that. Sorry, but this is one of the very rare thumbs downs I give.