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Kirchhoff's Voltage Law - KVL Circuits, Loop Rule & Ohm's Law - Series Circuits, Physics

The Organic Chemistry Tutor

2,378,427 views

This physics video tutorial provides a basic introduction into kirchoff's voltage law which states that the sum of all the voltages in a loop must add to zero. This video explains how to solve kcl circuits by using kirchoff's loop rule to calculate the current flowing in a series circuit with multiple batteries / voltage sources. This video also explains how to calculate the electric potential at every point using ohm's law. This video contains plenty of examples and practice problems.

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20 Comments

@TheOrganicChemistryTutor Creator 2 years ago (edited) Pinned

Final Exams and Video Playlists: https://www.video-tutor.net/
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@roydenramirez9081 7 years ago

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@lothar654 1 year ago

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@amin3h184 3 months ago

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@barahui9 7 years ago

This guy is the best. Already helped me in Calc and Chem. Now he has videos in Electrical engineering??

@bluefire8112 4 years ago

Why does no one explain the laws like you do. Your teacher must have been amazing, just like you. Your explanation helped a lot, thank you so much.

@noahnicotine8473 6 years ago

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@Holyfield7 8 months ago

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@mivineotnabab9669 2 years ago

11:14 "They don't oppose each other, they support each other," What words from a great man!

@1lyas5 3 years ago (edited)

You know you're in deep when even The Organic Chemistry Tutors can't get it through your head

@sarahholland5980 6 years ago

I was completely panicking because I felt so lost in class and didn't know what to do. Watched your video and I am so much more calm now. Thank you good sir.

@sandbrick 5 years ago

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@memirandawong 3 years ago

More than I got in one semester of electronics in college. Of course the teacher didn't have half the skills you do. You made a difficult subject for me embarrassingly easy.

@Aj-pn2wv 1 year ago

dude i fucking love you, i spent an hour on a single question wondering wtf I am doing wrong and you just literally explained the basic principle of it. THANK YOU SO MUCH.

@NextGyr 4 years ago

This man has been helping me all the way from high school till now and I’m in my second year of university. He is just the best

@Boikago_Gaeagelwe. 1 year ago

Legend watching this 29 minutes before exam

@fardinhasan1543 2 years ago

Legends watching the night before exam.

@dremorrison112 8 years ago

the organic chemistry tutor you are the best... you should take over from my university lecturers

@bitbosstech 8 months ago

Who is here in 2026
😂The video was posted when i was 13 years now am 21
. Amazing

@johnnolen8338 4 years ago

Nice explanation; the only thing is your sign convention is backwards. Engineers in the US use the passive sign convention. The voltage across a circuit element is positive only if current flows into the positive terminal of said element. The implications of the passive convention are that energy absorbed by an element is positive while energy supplied by an element is negative. (You essentially add up the voltage drops and subtract the voltage rises.)