Nodal Analysis for Circuits Explained

This tutorial just introduces Nodal Analysis, which is a method of circuit analysis where we basically just apply Kirchhoff's Current Law (KCL) at each node with an unknown voltage. You can choose to ground any of the nodes, but generally, grounding one with the most branches (especially if they are voltage sources) will make the problem easier. We will end up with one equation per unknown node voltage, and can just solve the system of linear equations to find the branch currents.

This video is part of a full free course on electric circuits. The course covers DC circuits, circuit laws, current & voltage sources, series & parallel resistors, nodal analysis, mesh analysis, and AC circuits.

Links to the course are here:

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Thanks for watching, I hope it helps!

[gladys]

Studying online, I didn't understand how my lecturer went about nodal analysis and here I am, understanding, thank you so much

[Mikebigmike]

Thank you! Im reading through a circuit analysis book and its difficult to stay focused, not the most exciting read but its fundamental stuff to be able to learn more interesting topics. I am glad videos like this exist it saves a bunch of reading!

[alifamran]

I've been looking solution if there are 3 fractions for hours now and i'm glad i found this video! i'm so dumb at math and thank you for saving my life

[clovischefor]

We actually solved this exercise in class but I didn't understand, now I get it all, thanks

[leechilton]

this video was the first video that actually made sense to me. i love you

[SalaheddineJaouhar-vc]

thank u sooo mu ch i've been watching the same thing for hours in turkish i was feeling like it's a punishement, but u explained it in such a nice and simple way, thank u again

[beatsme]

For real, thank you so much! I like how you make hard topics easier to understand :D

[adarshshreshth]

Thnx man literally i saw lots of video of nodal analysis but couldn't understand that much

[Samm-zg]

Wow it was easy explanation to understand.thank you sir alot of love from India ❤️

[harichandandasramanathan]

My test is today afternoon and I couldn't understand it from the notes but this video helped me alott thanks man

[hugomax]

You were in the Netherlands while making this video right? I could hear it by the ambulance siren in the background noise at 3:56

[immyt]

This z awesome.thanks very.much our lectures just rush up

[kdukxri]

Very good video. I really understood it, thanks a lot.🙏🙏💯💯

[ren]

What if the polarity of the 2V source was switched? Like the negative sign at the top and the postive sign at the bottom.

[eggxecution]

very clear I like this and this is the video where I finally understand how to set resistor polarity lol

[yosefpatinio]

it is possible to do nodal analysis for a voltage and resistor only? (one loop only)

[ADITIS-ssne]

Can u suggest any book where I can solve more questions on this topic?

[southmoreconlin]

Thanks, cleared things up for me fast.

[michaelmyers]

Question if there were parallel branches from Va to the 3 volt source with resistors would i just take Req or make more currents for the nodal equation ?

[shituniverse]

Your videos are keeping me sane, but I also wish you did explain how to get Va, Vb, and Vc.