Kirchhoff's current law | Circuit analysis | Electrical engineering | Khan Academy

Kirchhoff's Current Law says the currents flowing into a node must add up to zero. 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.

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[mohameddoudou]

our professor spend 1 hour explaining this thing and drawing every where and i've just understand a little bit, here i understand most of it, thanks for that Mr.Willy

[Newbrict]

wait a minute, if this is his current law, what was his previous law????!!!

[barbros]

I have learnt more from watching this short video than reading all my textbooks and classes I have attended. Thanks

[SamiKechiche]

Thank you so much your videos helped me so much to better understand physics better than my own teachers I’m from Tunisia and it s in a mess right now so thank you very much I m very grateful!!!🙏

[PurpleCrow]

I'm confused by the all circuits going in and out concept. In a circuit, the negative value would just represent the direction of current flow, which should be away from the node. Sending any current toward the node with no exit would just change the electrical energy into thermal energy wouldn't it? I realize it was just a visual example, but wouldn't it have been just as accurate and more realistic to show the negative flowing out? 3A positive going in and 3A negative going out would still fit KCL as the sum would be 3 + -3 = 0.
I'm learning, don't judge me!!

[orivalx]

NOW YOU COME OUT WITH THIS???? MY FINAL WAS A WEEK AGO! jk ily

[Cloudfights]

Thanks. U the only one who makes sense

[jacobvandijk]

KIRCHHOFF: the english word "church" is related to the german word "kirche"; the german word "hof" can be translated by the word "yard"; in the old days grounds around churches were used to bury people; so, a good translation of "kirchhoff" is "graveyard".

[Luffnin]

Thankyou so much I have been researching for half hour wondering "Do I actually understand?" So I thought I think I do, I thought it's basically common sense basic math but I needed to make sure I pass so I kept studying and now thanks to you this will be the last video I need

[aoishikasrivastava]

khan academy's biology explanation is better than physics' explanation

[varshakamesh]

Thank you so much this videos are useful to us to read thank you khan academy

[Dr.Rae-]

Very good explanation. Well done. Thank you for this wonderful video.

[BradCozine]

If that's Kirchhoff's Current Law, what was Kirchhoff's Old Law?

[graham]

Thanks for this, clear, concise and just nice > Mahalo...

[zJayM]

Awesome video!!! Saved me on my test!!!

[alanhurdle]

Ty It helped I remember now it was the sum sign threw me off ty

[JulesBartow]

This is way too complicated. My momma taught me the simple way: Gzintas = Gzoutas. Translation: What Goes Into must Go Out Of.

[ayanhossain]

Cro cop's law= Right leg hospital left leg cemetery

[mkerm]

kirkkohff's law isn't it kirchhoff's law ? its in the title jk thx for the help bro

[uchihamadara]

Have a midterm in 2 hours. Of course khan academy has a video on this lol