How to Solve a Kirchhoff's Rules Problem - Simple Example

[@emcardle660]

My test is in a few hours, and this has taught me so much better than multiple lectures! Thanks so much!

[@JesseMason]

+Eddie McArdle Double the teacher, double the fun!!

[@eslamnagy3530]

Eddie McArdle زدزبليقف

[@wantedq8332]

how do you study a few hours before the test?? people usually need 3-4 days of studying.

[@ahmedaldaly3648]

@@wantedq8332 This was 3 years ago . XD

[@MustafaAbidalla]

@@wantedq8332 me right now

[@ayomikuyoade9207]

Who is just seeing this in the year 2024 and still finds it helpful 😊

[@JesseMason]

I love hearing from people around the globe! I wish you all the best with your studies, friend.

[@AmanRaj-lp5lz]

Could you please make videos on magnetic effects of electric current as well!?!

[@nesma6862]

Thanks a million! 🤗💖 *From Egypt 🇪🇬*

[@sankaranganesan294]

Hey I'm from India

[@AbhishekKumar-oe6xn]

Great explanation... I'm from India 🇮🇳

[@ahmadnuursyifafuady141]

Thx you very much

[@ferni0]

11 years later and you explained better than any of any of the EE teachers, thank you!

[@JesseMason]

Teaching (well) is not easy! I'm still at the beginning of my journey as a teacher but I have been blessed with a couple very generous and talented mentors in that department. Great to hear from someone in Spain! Les Falles is on my bucket list and I look forward to seeing your country someday.

[@neutronenstern.]

why do you use kirchoffs rule so ridgirous? I dont do this at all. I just use law of conservation of Charge and thus same current in serie and i will use, that in parrallel circuit the voltage will be always the same. And in series the voltage will be split (not always equally) and i will use that in parallel the current will be split as well. Then i just write some ohms law out of my mind and the rules i need also out of my mind (logic) directly in the form i need it, and then calculate all i need. If you do it rigirously you might have hard time in solving all the unnessesary equations to put it into one equation espacially if the circuit is quite complex. And if i cant identify what is series and what is parrallel i will at first structurize the plan until it works out. (in some cases, there is series plus parallel for the same resistor or whatever, but then you can always exchange this single resistor by two, one in series, one in parallel but i think you dont even have to, because in these special cases, you can apply rupe of potential difference between the ends of the special joint).

[@Dani-pf2ti]

"simple example" me: *cries in a corner*

[@malikscott7062]

Ik dude.

[@estheradeyemi4408]

😭😂

[@JesseMason]

Resistors present a voltage drop when moving with the assumed direction of the current, whereas batteries present a voltage lift when moving with the assumed direction of the current. Hope that helps...

[@mazapanputrefacto3299]

You should have said that in the video...

[@JesseMason]

@@mazapanputrefacto3299 2:48

[@sadra9055]

Hi, just a question: how do you assume the direction of the current in a wire. If you get a negative answer what exactly do you have to do? For example how are you supposed to know where (which wire or even which loop) you assumed the wrong current direction?

[@johnjordan3552]

@@sadra9055 Have you watched the video? You just pick a random rotation for that part of the circuit and write the equations according to the rules he explained. After solving the equations, if the current is positive then the current is actually 'going' in the direction you have picked, if a said current is negative then it actually is 'going' in the opposite direction of the initial direction you've picked. E.g. if you have picked a clockwise rotation for the circuit and clockwise current direction, after calculating, if the current is positive then it really is clockwise. Were the value you found for the current negative then the current is actually 'going' the opposite direction so the opposite direction of clockwise is counter-clockwise

[@sadra9055]

@@johnjordan3552 thanks for the reply. I know that if the current is negative you would have assumed wrong direction of current. But lets say you get a negative current as your answer, could you just change the negative sign to a positive sign and use it as a valid answer?

[@TheFreeBro]

This just made a thousand times more sense then my physics teacher. Thanks

[@JesseMason]

Three orders of magnitude better!? Wow. I'm flattered, FreeBro. =)

[@alpha-e3f]

4 sure

[@olasunkanmioyetunji9254]

Seriously ❤

[@allis1971]

This was unbelievable! No one has ever explained Kirchhoff's rules more concisely with such clarity! THANK YOU!!!

[@alpha-e3f]

Still helping :D

[@Callen013]

You honestly explained my entire 50 minute lecture in just 10 min better than my professor could. The internet is powerful! Thank a ton, great video!

[@JesseMason]

Callen013 The free exchange of information is transforming our world. So glad to participate in this revolution in my own small way, Callen. Cheers from Detroit!!

[@RubberDingBat]

Watching videos after my first year of electronics engineering course, I wish I had this during that year! Explanation was perfect and it was great to have a re-cap!

[@WarriorOfHonor16]

final semester senior mechanical engineering student here studying for my engineering competency course. I'm graduating because of people like you!!! Thank you to all the fantastic youtube professors out there that literally made a world of difference for me during these past four years.

[@JesseMason]

Hats off to the grad, WOH16! Congrats and best of luck with your career!!

[@WarriorOfHonor16]

Jesse Mason thanks Jesse!

[@bensonyuan682]

Who's here because your teacher can't explain better?

[@liemh9290]

haha yep

[@olamohamed7764]

meee

[@SaidAdemReborn]

Raises both hands because they are free until I get to my classes where my professors CAN explain their material.

[@aldinbaluyot3132]

RIP me

[@m.adnantawesh1529]

Benson Yuan me

[@Alalpog]

Gawd, my reading for 30 mins was compressed by your 9 min video. Not to mention 2 hours of teacher stutter. hahahha Thanks man super helpful.

[@JesseMason]

Glad you liked it, Mr. Buns. =)

[@Alalpog]

:D Though i was late for my exam. :(

[@linlinwei7761]

This is a good video. He used an example from the textbook and talked it very clearly. From the reviews of this video, I found it is helpful when I know nothing about the Kirchhoff’s Law. I found most videos are using similar problems-simple and classical. This is not bad but I hope there are more comprehensive examples displayed, because many problems in the exam are harder than the usual problems.

[@yousif1173]

Who else is here because they have an exam tomorrow?

[@ArjoRemo]

Lmao have an exam in Basic Elec. engrng. XD

[@theson22788]

I have quiz tomorrow and my professor suck

[@AuraScar]

My final is in 8 hours lel

[@pondangangelica7805]

Yeah, my finals is tomorrow haha

[@olamohamed7764]

GOOD LUCK

[@1polyron1]

This has helped me more than my teacher over multiple lectures. I'm taking the test now and I'm learning more than I did in listening in class. I think I might get an A!

[@JesseMason]

Good to hear, PolyRon - best of luck to you!

[@thecatwhisperer2820]

Man this is gonna help me so much. My professor doesn't reply at all. He sometimes didn't show up. He updated grades for the TWO classes(lab/lecture and another lecture one) when there were only like 3 weeks left in the semester. He explained KCL by just saying the current going in will equal the current going out, no matter how many different junctions or w/e. Didn't explain how to calculate it or anything. Thank you for this video.

[@kirstenmeates8248]

Never leave comments, but with an exam tomorrow this was super helpful! Thank you :)

[@ming3062]

Who’s here because of the online learning and you cant understand in your class?

[@JesseMason]

Me!

[@shahrakibulhudamehedi447]

me

[@vinith1018]

@@JesseMason same

[@HeavensTalatorz]

ya, for the same

[@raymakbutwithmoustache6413]

Meh

[@JesseMason]

What a great suggestion! Never thought of doing that. I will mention this from now on instead of "dropping the units". Thanks a bunch!!

[@saoodalamoudi4012]

im student in saudi arabia and i've watched a lot of arabic videos and the're making it hard to understand , im watching now and you've made it easier

[@JesseMason]

Would LOVE to get this video translated to arabic!

[@JesseMason]

Directions aren't needed for the subsequent calculations. (The magnitudes are correct, no matter our direction selection.) Hope that helps!

[@mohamedshihadeh4817]

Its nice to see you take time explaining rather than just trying to finish as many questions as possible like some lecturers at my university.

[@JesseMason]

Time well spent!

[@NinjaBen00]

very nice. very helpful. perfect voice, perfect speed, perfect explanation. well done

[@JesseMason]

NinjaBen00 Very kind of you, Ben!

[@mon0bon089]

2 year of a levels and never got the concept but just 9 min with u sir made all the difference thank u sir

[@austinyurchik9326]

This has been an excellent tutorial about applying Kirchhoff's laws to a real-life circuit. The presentation of the material was professional and the author did a very good job of explaining and justifying what he was doing every step of the way. Although the circuit was pretty simple, the fact that the author showed the relationship of Kirchhoff's laws to Ohm's law and power dissipation was a key feature. It would have been nice if the author was a little more explicit about when he was actually using Kirchhoff's current law and Kirchhoff's voltage law, but the viewer can probably pick it up very easily. A written out definition of the laws would have been nice too, but the verbal definition was very helpful. Overall, this had been a great tutorial and any student learning Kirchhoff's laws would benefit from watching this video.

[@lemonlime07]

bro wrote an essay

[@callmebiz]

It's crazy how I just learned more in 9 minutes that I have in 9 weeks. Thanks my man.

[@rishabh.patel10]

I wish my professor explains me like this. Thanks So much

[@speedblazer623]

This video deserves a life-saving medal. Thanks a huge lot!

[@JesseMason]

speedblazer623 lol Glad it helped you, speedblazer. Good luck with your studies!

[@RAHUL-nj5je]

Damn!!!! Your explanation is so freakin' awesome. Now I get it why don't schools have good teachers..b'coz all the best ones are sitting here on the internet.Thank You so much.It was very helpful.. :)

[@JesseMason]

I'm standing actually, Rahul. ;)

[@sankaranganesan294]

@@JesseMason oh!

[@syedjaffer9832]

@@JesseMason 🤣🤣🤣

[@yourfavoritefish05]

This video is a life saver!!!! Was able to solve a problem in 10 mins vs the 40 mins I spent trying to figure it out yesterday!!

[@Heliophile_aashii]

I hardly get correct answers while solving questions related to this topic.😩 you did a great job btw.

[@davidkirpes8694]

100-Evaluation This video has multiple benefits and points for improvement for the intent of helping students understand the concepts of Kirchhoff's laws. The video does a good job of demonstrating the solution process beginning at labeling the circuit diagram, finding a number of equations to match the number of unknowns, and solving for those unknowns. They also note their assumptions and provide asides to concepts such as the conservation of charge. Some of the areas for increased clarification would include using the wording of Kirchhoff's laws (KCL) and (KVL) to tie the marker strokes to the concepts. The author switches between methods without specifying which also leads to confusion. An additional explanation would include specifying that this is a simple circuit, DC circuit, that additional methods may be needed to solve a more complex circuit, and even that these laws only apply to certain circuits. Essentially, this video only provides a quick way to memorize a strategy without considering why it works or encouraging critical thinking.

[@ethangormong7506]

Thank you for a very helpful tutorial. Much more confident for my Physics final tomorrow.

[@choochd]

Your perfect writing calms my body.

[@saelbennoa6226]

The lessons is great, and the closing music sells it fully :)

[@JesseMason]

That's Millish for you!

[@saelbennoa6226]

Oh yea :) I actually know the band from somewhere :P

[@guydude82]

I really appreciate how organized your teaching is (and how neat your writing is). This video was _so_ helpful to me. Thank you!

[@JesseMason]

@Vielet You're welcome!

[@BankruptGreek]

sorry for writing to you on a 3 year old video but I wondered even though you chose the wrong direction for current I2 was still positive why is that? you can see it at the bottom left 6:58 while you fount I1 and I0 to be negative top right and center right

[@derrickrose5964]

I know this is late but its cuz I#1 breaks into I#2 and I#0

[@exogendesign4582]

this is helpful i solved it first before i watched the whole video, just came here to prove if my professor is doing the right way of solving or not, and she was, thank you for this .

[@JesseMason]

You're welcome, ED!

[@JesseMason]

@Bazeela You got it!

[@sushmafromu.p]

I like it

[@atomsaskal2779]

Your lecture and handwriting is very neat and planned. Thanks!

[@slampog]

God bless man, you make x5 more sense than my college professors.

[@JesseMason]

+slampog Nuts. Was going for x10.

[@DarioSim]

college? im freshmen highschool and im learning this

[@tuanybignotto4666]

Thanks man! My teacher is horrible at his job or hates it maybe. He "explained" too fast, and put integrals and derivative in the middle confusing everyone in class. Also prepared exercises WAY too advanced for us and if we asked if he could explain again he would get mad at us! Terrible teacher. Ugh I was freaking out about the test. You did in less than 10 min what he didn't do in the whole semester! Saved me and 39+ people in my class!

[@atanudavid9663]

you just saved my ass, my lecture for the whole semester couldnt make this clear to any one....im literally dancing right now. Thank you

[@romarssieverything9667]

Was here when I didn't understand the concept in High School, back again because I couldn't recall the concept in college. Both of the times wasn't disappointed. Thank you so much for this.

[@Runaway112542]

In 4 minutes, you explained this more clearly than 3 hours of assigned videos my teacher gave us to watch, and 10 combined hours of class time involving circuits. So thank you for that. Also, my teacher just gave us 35 years of AP physic C EMS problems due Dec 23 so, wish me luck. Or kill me. Either way. It's just too much to combine with a job and sports. Not to mention I'm taking linear algebra at a local college instead of a class at my high school because I've surpassed the classes they offer. So that swamps me. If anyone wonders why teenagers are so broken nowadays, it's because of things like this. thanks for the vid cheers

[@JesseMason]

+BILL3 My heart goes out to you, Bill. Sounds like you've got waaaaay too much on your plate right now. (And where is the time for just messing around with friends?) All the best from Detroit!

[@queenforhermom4299]

Jesse Mason

[@HearMeRoarx3]

Dude you're the bomb. I'm in a class that goes really fast over the topics and I always feel so behind bc the examples are so advanced and complex, but you really helped me understand the basics I needed!

[@JesseMason]

HearMeRoarx3 So sorry I missed this comment, HMR. And so glad to help build your foundation. Best of luck with your studies!!

[@mexicansombrero]

Still in 2019 this is super helpful!! Thanks

[@joelvarghese3370]

In 2020 too

[@FiggyDigs]

Your channel is bound to quickly become a favorite for my current class. It's a shame the lessons drawn up aren't as coherent or complete as this video was. Thank you.

[@JesseMason]

Thanks, Figgy! Have you checked out the Series/Parallel video yet?

[@olokungboyegabriel4292]

Thanks so much man. Still useful even after 11 years

[@mnpinky8669]

I can never understand this and I'm normally really good at physics. I mean I follow what you're doing here but when I go to do it myself on my homework I can't get the right answer. I'm sooo frustrated I hate this. And it's the last thing we're learning this year.. Of course it's the one thing I can't understand..

[@chandrimaroy141]

Listen each n everywords carefully and u can understand it easily.

[@maxywandaka5054]

just practice more

[@lalen.2410]

same

[@galmayda]

This is really helpful, i studied for 2 hours but i still can't understand anything, and after watching this i'm able to solve my homework assignment. Thanks a lot man, i'll look forward for your new video!

[@JesseMason]

Glad to help, Grayster. Working on three videos at the moment. Hopefully have one up in the next couple months...

[@khairunaseem]

A small doubt sir For finding voltage drop across V2 , we didnt we take the current sigh as negative, since I1 HAS A NEGATIVE VALUE?

[@JesseMason]

khairunissa naseem Nice catch! That was a mistake on my part and I'm glad you caught it. Sounds like you're well-prepared for the Kirchhoff's part of your test, Khairunissa Naseem!

[@khairunaseem]

+Jesse Mason thanks. thats all coz of ur tutorial

[@farahadrizal630]

Does that mean, V2 = -7.5V ???

[@scenerybyv5902]

O

[@pranishkhadgi2723]

Does that mean V(200 ohm) = -7.5 V P(200 ohm) = -0.2812 W ? Please explain me this.

[@ocin5006]

Thank you so much for this video! It clarified so many things that just didn't stick in my head when just reading the textbook.

[@geethachandrasekar3245]

Super music and teachings sir

[@JesseMason]

Thanks, Sankar! The band is Millish. I used to play guitar for them.

[@maysoonhf]

wow multi-talents ;D

[@thedude4619]

Very organized and understandable video. This video is 10 years old but I'm still benefiting from it.

[@JesseMason]

I like your style, Dude.

[@abidullah91]

here i am little confused that for R=100 the current I1 and current I2 in opposite direction so for loop 1 , we should write 1.5v-100(I2-I1)=0 , also for loop 2 will be.... 100(I1-I2).. Right?

[@ciryl2389]

Abid UllahPk i agree with this. the current in loop b must have an effect on the 100 ohm resistor

[@parvummalus2361]

explained it better in 10 minutes than three professors and 2 different peers. thank you so much!

[@KastanDay]

Super helpful. Please come teach at my highschool.

[@JesseMason]

Glad you liked it, Kastan. Perhaps share this video with the incumbent? ;)

[@beast1345]

ONLINE CLASSES BROUGHT ME TO THE BEST TEACHER WHO COULD SIMPLY UNDERSTAND KIRCHOFF'S RULE WITH A MAGIC SPELL ❤️

[@fanannusayr]

WHY I AM TOO GOOD WITH MATH yet TOO BAD WITH PHYSICS

[@makrinetskipurishvili]

Don't worry, I am the same

[@sankaranganesan294]

Oh me too

[@ashrithsri]

Sir, your explanation is so smooth and simple to understand. Thank you so much!

[@greg2797]

You Da Realist for this

[@JesseMason]

Da wha?

[@greg2797]

Jesse Mason *realest

[@JesseMason]

+Gregory Smith Da realest realist.

[@isipattison3440]

physics a level exam tomorrow and your videos have helped more than a full term of electricity

[@christianthomason3010]

Hey I just have a question, how come the voltage of the 200 resistor is positive? I thought the current of I1 was negative.

[@samfiesta5968]

its because there is no negative resistance.

[@truebeliever174]

Because there is no negative current flow. It just tells you the direction you imagined is not the case. It flows the opposite direction. And the power will always be positive.

[@azaardawan5089]

too late but he said that it should be negative just watch it on a computer

[@Emsatacc]

Why did yall answer 3 years after his comment 😂😂😂😂😂

[@d3lyryum]

Awesome Jesse!!! I could understand kirchoff with you better than with my teacher speaking in my language!!

[@kedaang]

thanks bro, my physics teacher is like the minesweeper game. I don't how to figure shit out from him.

[@joannchu14]

kedaang Minesweeper gets easy when you know the rules btw

[@usmanchughtai1751]

You have no idea how much this helped. I've been struggling to understand it and you've made it really easy. Thank you

[@JesseMason]

+Usman Chughtai Highest compliments, Usman - a heartfelt cheers from Detroit!

[@WafulaIsaac-w9t]

I have exams tomorrow

[@Slime5276]

I have a test tomorrow and you HELP me so much! Thank you!

[@JesseMason]

You're welcome, Mehrin!

[@Mafaneh20950]

YOU ARE A FUKIN LEGEND ( in a good way)

[@JesseMason]

That's very kind of you, Mohammed. =)

[@mehmeteray1907]

nobody can be a legend in the wrong way baby 4 year late reply btw

[@reezybigpants9717]

Holy Christ! that was one hell of an explanation! The world needs more teachers like you!

[@JesseMason]

I'm flattered, Reezy. =)

[@dratsab1980able]

Hes the PatrickJMT of Electronics!

[@jkpp.]

dratsab1980 They both are the shit!

[@JesseMason]

Hi Abdul M! I cover Kirchhoff with Matrices right here: kzbin.info/www/bejne/lanSnotjmZ2Li5Y

[@gillesjordanndassitalla9595]

hi mr jesse i woul like to better know how to identify loops directions because it is the base i can't go forward without knowing it thanks for your understanding i am JORDAN from CAMEROON

[@mohammedalkhaldi1852]

Jesse Mason n

[@PrasadUchil10000]

You da real mvp man !!!!

[@anirudhn9622]

you are the first person who explained me kirchoffs laws this well

[@JesseMason]

My mentor Dave is the first, me thinks... ;)

[@audreyshuler5701]

Wow. so helpful!!!!!!!! and I'm only 55 seconds in...

[@muskanarora2772]

Thank uu.. I learnt much better in this 9 mints video than hourly boring lectures...whoooo😍😍

[@stefan-ciprianpopescu526]

Thanks!!! (Romanian teachers explain it in other way (harder one)

[@yojuneuchiha382]

Mr. Jesse Mason, you just helped me in my Physics semi-final examination tomorrow. Thank you!

[@daster2000]

Test in 5 hours. I can't sleep :(

[@rainclock94]

You just explained to me in 9 minutes what my book what trying to do for 2 days. Thank you so much. Keep it up!

[@JesseMason]

Chris N. Glad to clear things up for you, Chris! Best of luck with your studies.

[@urpaps]

When someone replays after 8years u should salute them. It was very clear thank you for your efforts

[@JesseMason]

Thanks for the compliment, Naman!

[@stutighoshal3423]

T-2 hours to my physics midterm and you just saved my life! Thank you so much Jesse :)

[@JesseMason]

Great to hear, Stuti. Hope the exam went well!

[@josephwilson3180]

This was very helpful. It made my exam go much more smoothly than it might have. Thank you!

[@tamkim2828]

Thank you so much for your instruction. Your instruction is so clear, others so confuses about the polarities thingy. Your instruction does not care much about it. Thank you so much for your clear and easy instruction.

[@JesseMason]

Cheers, Tam!

[@Delinester]

Gosh, my finals are in 2 hours and I understood how to solve these kind of problems ONLY NOW with the help of this video. Thank you!

[@youssefflis7913]

I got A+ in the exam because of you . really thank you so much you saved my career

[@JesseMason]

This made my day, Youssef. Best wishes for a wonderful career!

[@jkpp.]

You basically saved my life. I am indebted to you, man. Thanks for the help. It's beyond appreciated.

[@JesseMason]

Glad to assist, Jacob. Best of luck with the rest of your semester. And pay it forward and save someone else's life!

[@apio6398]

Got my finals in 2 days...can't tell you how thankful I am!

[@srivishnurentala8598]

Fantastic video... One of the best videos I found for kirchoff's laws in KZbin

[@JesseMason]

+Srivishnu Rentala Glad to make the list!

[@eggxecution]

it's been years this helped me a lot!

[@TapTapAndAway]

Thank You So Much. It Helped me a lot. I'm a college student, and I didn't get what my Professor was teaching until I watched this Video.

[@JesseMason]

It can be a tricky topic. Glad to clear it up for you, PieL!

[@goobygoob9312]

I just learned so much more from a 9 minute video than a week's worth of lectures.

[@JesseMason]

Thanks, Goob!

[@JesseMason]

Hi Toda! Both are valid expressions of the Junction Rule. But ours here might be easier to understand conceptually. And we could use a third loop, but two is sufficient for analysis in this case. When in doubt, use all the loops you can!

[@ishakalangutkar4398]

Nobody else could teach me this any better.. Thankyou so much..

[@markcollins4654]

Ok, I have literally no idea whats going on... I applied for Electrical Eng in college next year and this video has made me change my course choices...

[@miamor995]

i seriously think you just saved me from failing my problem set thank you so much!

[@You2efhussam]

i almost gave up hope on this lesson but u bought it back , thanks

[@JesseMason]

Glad to help, Yousef!

[@arifuddinburhanuddin554]

Sir, you just explained a week's lecture in 9.10 mins. for that i thank you.

[@Mooloolah28]

Thanks dude. You're saving lives here.

[@shivanijaiswal7604]

Thank you soo much, I am in 12th grade from India and I had soo much confusion regarding the sign convention. I am using Kirchhoff's rule to solve the capacitors