Node voltage method (steps 1 to 4) | Circuit analysis | Electrical engineering | Khan Academy

The Node Voltage Method solves circuits with the minimum number of KCL equations. Steps 1 to 4 out of 5. Created by Willy McAllister.

Electrical engineering on Khan Academy: A summary of the math and science preparation that will help you have the best experience with electrical engineering taught on Khan Academy. Become familiar with engineering numbers and notation, and learn about the two most important electrical quantities: current and voltage.

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

[StephenMendes]

Students might also find one (or more) of my videos helpful for Mesh and Nodal Analysis I have videos for every aspect of electronics but in circuit analysis Playlist I have videos for all the methods supernode, supermesh, superposition, Thevenin, Norton, source transformation and etc. sometimes it helps to watch several videos for the same topic to get a fuller understanding

[richardhall]

You sir are a godsend. Thank you from all of us Circuits students out there!

[amirbarkhordar]

Thanks for the great video. I would have identified step one as finding the nodes first.

[TsiratiugZ]

Hi, this is great stuff. I was wondering if you offered a complete beginner to advanced electronics program?

[sleephourofmotivatwakeupas]

Sir.. Your YouTube channel is the best place to learn mathematics and physics.. Thank you sir

[MsDanijelac]

Thanks helped a lot, if you guys have time make more videos on electrical based lessons. Keep it up <3

[jedelcaldovlogs]

Hi sir. This is great content, for us a student it could help to understand the problem.

[DevinDTV]

9:10 why's it V1-V2/R1 instead of just V1/R1?

[amirhosseinnoori]

Hi, just a question: how would you identify the direction of the currents around the branch at 7:35 . Do you just assume?

[youssifgamal]

what is the definition of a node ? and based on what should I set directions of currents ?

[yunseiprod]

this video needs to be updated right this instant i refuse to stand for this

[EATW]

nodal and mesh analysis selection criteria

[janwrobel]

Awesome video!!! Now I know everything !!! :D thx!

[caglaryldz]

In the most right of the figure, there is a blank wire. How is it following the middle wire? I am confused. I think there is a problem with the question.

[HeathenMidas]

How do you know where the current arrows will point to?

[정지훈-jqn]

can i ask something? why i1= v1-v2/R1 not v2-v1/R1?

[irfanpeer]

What is the point of the reference node? What purpose does it serve. It is not like it actually acts as a benchmark/ground when writing the equations. The equations are the standard Kirchhoff's equations. I mean can someone explain the purpose of node voltage in general. Isn't it exactly like finding the current and etc the normal way through Kirchhoff's laws?

[amratef]

Can u explain why node voltage 1 equal 15

[륙륙-sd]

thanks to upload a good video. by the way, could you please tell me why the node on the left side of node 2 can't be a ground node? i thought the left node has same number of elements ( voltage source, resistance, current source).

[mannyobi]

Thanks for the video! I'm stuck trying to figure out why i1 = (v1 - v2)/4kΩ. Please help me to understand.