Kirchhoff's Voltage Law (KVL) - How to Solve Complicated Circuits | Basic Circuits | Electronics

We've gone over KCL but now we're going to learn about Kirchhoff's Voltage Law, frequently known as KVL. Similar to Kirchhoff's Current Law, Kirchhoff's Voltage Law is another law of conservation but conservation of voltage instead of charge. In this video, we discuss what this means, try to understand these concepts intuitively, learn the best way to solve complicated circuits using this method, and then do a few circuit problems with solutions to put that theory into practice.

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Table of Contents:
0:00 Introduction
0:18 Conservation of voltage in a loop - the basis of KVL
0:51 Overview of the concept of conservation of voltage in a loop or mesh
2:53 Introduction of our five steps for solving KVL
3:45 Step 1 - Take your time
4:13 Step 2 - Assign mesh currents to all of the meshes
4:50 Step 3 - Apply KVL to each of the meshes
5:31 Step 4 - Solve the simultaneous equations
6:19 Step 5 - Sanity check
7:24 Example Number 1
13:24 Example Number 2

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[amazingvideos]

I really love this tutorial, very simple to follow. I hope there a part 2 video about this, which problem solving to test what we have learn and also to improve deeper understanding. Thank you.

[sgee]

I can't wait for the next video.

what a great channel I found :heart:

[balla]

I always appreciate the video chapters, thanks

[knalum]

Great lecture on KVL. The ending shows the importance of sanity checks!

[Chandrashekhar_prashant]

thank you, that you clearify a lot of doubt

[tech-trials]

Hi i really enjoy your videos its insightful and easy to understand and ive watched a ton of tutorials but most just brush over the details, one thing id like you to add thou is a practical example too i mean theory is good and all but in a perfect world the theory wont be so exact and a practical example gets people excited to put what they learnt to the test and feel good when it works out also gives them a chance to get use to trial and error and learn from that as well 3 birds 1 stone kinda...
side note only thing that bugged me about this video was you wrote:
"10 - I1 * R1 - I1 - R1 = 0"
Im sure you ment to * instead of -
"10 - I1 * R1 - I1 * R1 = 0"
other then that great video and math adds up on my side so i did learn :)

[eagleeye]

I totally lost it where you put it in matrix calculator. where did -3 7 and 360 came from?

[tech-trials]

quick question i made my own little mesh problem to solve but ended up with a non square matrix... how can i get the inverse on that?

[iwantagoodnameplease]

Great videos.

I'm surprised you don't make them on a breadboard or with wires or something as well to measure it and make sure that the math works. After all, circuits are real things!

[kofel]

Is it possible that you switched up i1 and i2 at the end? Because I get the same results but with i1 and i2 switched, and wouldn't the current flowing through the smaller resistor (R1) be greater?
Maybe I'm just confused, but I even checked with a simulation. Anyway, I really love these tutorials! Thank you so much!
EDIT: Whoops, it's explained later.

[sumratseven]

Thanx Sir....
By The Way Do You Have Any Brother/Sister/Friend Who Can Teach Mathematics Or Chemistry Like This 😊

[martinl]

Hi Buddy, Thanks for the video. Would you be able to point me in the right direction with the matrix calculation? I just mean how to punch it in to the calculator! I have a scientific Casio calculator with matrix functions.

[gutsyadheera]

Plz tell me what tesla looks when they need an electrical engineer

[fisforfriendship]

if your final answers are a negative number i believe you just have to change i whatever go the other way changing polarity and redo it. then again if all you care about is the answer despite polarity...you

[kaluchka]

Too many distractions and pauses on the train of thought that makes this exercise effectiveness of around 20%, need to rehearse more on the train of thought !... Forget the logic notation and simplify with real numbers instead so you don't trip on logic, just use plain words, Voltage, Current and resistance, drop the R, I, & V plus # of components....