Thevenin's Theorem - Circuit Analysis

[@TheOrganicChemistryTutor]

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[@vincenciaondigo3584]

Hey! wher did the six come from after calculating thevenin's voltage

[@94D33M]

​@@vincenciaondigo3584that could be any value according to the question given.... It's not something that was calculated

[@friday4632]

once I see this channel's name in search results, I know I'm safe.

[@mihirgupta3824]

I can so relate 😌

[@muhdmustaqim7017]

same over here huhuhuhu

[@malihareza4754]

Same here

[@binodtharu8348]

Yes😄😄

[@hadeartalal4261]

Amen to that

[@isaiahsharplin2579]

how, and why, does this guy know so much stuff?? Like... chemistry? calculus? circuits? Is there anything he doesn't have a video on? Bravo, sir.

[@graemep7729]

I always wonder what his undergraduate major was to get this background. Chemical engineering maybe?

[@abdullahahmed1673]

he knows a thing about everything and not everything about a thing, he uploads good videos generally but he doesn't go into the deep details and that's completely normal

[@meteoktem]

i heard his major was electrical engineering depends on the uni but some of us also take chemistry classes @@graemep7729

[@ab_muslim]

Can I ask you a question ? Do you find this video helpful ? I mean Can I rely on this video for understanding and reviewing?

[@meteoktem]

@Al_hamdoulilah_0 it is helpfull but not enough if you are an electrical engineering major that is You still need to learn how to find Rth when there are dependent sources.

[@saralia3281]

I've tried to understand this concept for a few weeks but after watching this video I really feel like I understand it properly. Thank you so much:)

[@fockewulfunicindekiconta4121]

Nice, now its my turn haha

[@ritzy130]

Interestingly, all the videos you have been posting lately are exactly what I need as I've been learning it

[@paarijatsuman4054]

Correct

[@TinyRebel7647]

Same, saving my Circuits grade!

[@kylew706]

Me too!

[@rougeartist985]

.sjbr

[@_infinite_game]

kzbin.info/www/bejne/pmOqf5qDfJZoo6c

[@263boi]

Was on the verge of dropping out of engineering

[@263boi]

@Afrah@2 EE tomorrow 😭🤣

[@petar000petar]

@@263boi Me too bro hang in there we got this

[@nanad1111]

same bro, same. but we're still trying

[@imanah4819]

lol so truue but I still struggling😭

[@Lach2114]

you from zimbabwe?

[@lewismahon1619]

6:53 - 6 ohm load resistance Rl, you didnt write this down before anywhere, just thought I would point out for continuity. Thanks.

[@ley90]

yeah i reversed it couple of times to know where it comes from

[@Blondejesus7]

It was from when he did Nortons theorem he use the same problem so that’s where he got the six from He must’ve me the videos back to back I forgot to add the six this time

[@KaziNazmulYT]

Me too

[@bilalelachab6270]

We need more people like u

[@millenjanclarkconsuegra4907]

Thank you, now I could know that maybe he just forgot to wrote it, because I was curious where he got that 6ohms

[@CluckYou21]

I bombed my first electrical exam. The next two I watched all your videos and did the practice problems, came out with an 84 and then a 93 on the final exam. I'm in your debt again, thank you!

[@anasm6751]

ur welcome

[@hamstertiff99]

What kind of man had so much knowledge

[@virtualcity721]

😂 A man with female problems i guess

[@veekay7]

A nerd

[@ZMan-lx6pg]

Engineers!

[@laurabravo2073]

Great video! I was wondering where the RL resistance = 6 came from. At 6:48 he says he'd written it down before, but all I saw was just plain "RL" without it = 6. Am I missing something?

[@mim2631]

Even I am thinking the same, please tell me, if you get to know the reason.

[@Bucky41666]

He say's because he wrote it before, and I also did not see it written or derived anywhere so I'm a bit confused

[@Bucky41666]

The only way I could think of to get 6 is to just straight up add the 3 resistances and divide by 3, but for some reason I highly doubt that's correct.

[@laurabravo2073]

I scrolled back through several-year-old comments, and they said he forgot to include R = 6, which was a given for the problem.

[@yousefo9825]

god bless you@@laurabravo2073

[@eggxecution]

hey keep it up, I don't know if you have a stable job or not but please don't stop making these videos. You're helping people especially those in the third world country. Thank you so much keep it up. Hope you get more subscribers. God bless! Thank you so much I'm very grateful. - ECE student 2nd year school year 2019-2020, I'm from a third world country

[@KittyBoyPurr]

Same

[@adamsonkhalid4905]

Nigerian?

[@arnordtetris7496]

Am from Viet Nam, yes indeed those video is helping me a lots through college. My greatest thank to you sir private tutor if you read this !

[@eggxecution]

@@arnordtetris7496 sup, I graduated recently from my ECE currently preparing for board exam boy how time flies hehe

[@eggxecution]

@@adamsonkhalid4905 asian from philippines

[@dougrowell7817]

This is super. I have watched so many vids and read this in books and could not get my head around it. This makes it so simple. You DON'T skip steps like the others. I couldn't grasp why R1 was in parallel with R2. Now I follow. Your vid on series/parallel was a great help leading up to this. Thanks

[@carltonyuan2442]

why is it parallel help me please

[@dougrowell7817]

@@carltonyuan2442 Hi Carlton. It took me a few vids to get my head around this. Remove the voltage source providing a short circuit as instructed. That brings the left hand end of the 4 ohm resistor to earth - in parallel to the 5 ohm. It helps to redraw the 4 ohm resistor vertically where the voltage source used to be. Hope this helps.

[@dilhanmert1987]

Yeah these professors be skipping 50 steps while explaining

[@karthikgaming2690]

​@@carltonyuan2442simply because they are not there in the same line. Same line is series and opposite is parallel. From the diagram you can see that 4 and 5 are not on same line so parallel and when these two combined we can draw that upper side 4 ohm or 5 ohm it can be series with 9 ohm. Hope this helps you .

[@christianrazvan]

​@@karthikgaming2690Well if i consider the following loop : source (50v) then r1 and then r2 theb they are clearly in series.

[@JedKerlin]

I think this guy always has the perfect videos for studying. Been a avid watching for years. Cheers boss.

[@TheLeontheking]

0:40 thevenin-resistance 2:30 thevenin-voltage

[@afif4738]

Thank you!

[@georgesadler7830]

Professor Organic Chemistry Tutor, thank you for explaining Thevenin's Theorem by solving a classical Circuit Analysis problem from start to finish. When I took Circuit Analysis many years ago, I did not fully understand this material, however my knowledge of the material has improved over time. This is an error free video/lecture on KZbin TV with the Organic Chemistry Tutor.

[@JF59122]

You explained the theorem so well...I was afraid to try to learn this but now I'm able to solve most problems with ease!!!!! Thanks man! It means a lot! 😀😀😀

[@jara3am753]

FOR ANYONE CONFUSED , he randomly included Rload = 6 ohms in the middle of the video , it wasnt given at the start . Its abit confusing unfortunately :(

[@furkankaratas4546]

Hey, i've just watched a bunch of videos to the thevenins theorem a cause to my assesment next tuesday. I wanted to thank you a lot because your video helped me a lot .!

[@bryanagostine1910]

4:29 he said that Kirchoff's law means that the current in and out must sum to 1, but its actually 0

[@Abhisheism]

No as per kir Kirchhoff's law integral(E.dl)=0.. which means current sums to zero along any line or junction

[@lancecruwys2177]

@@Abhisheism Thats what he is saying. 0 not 1.

[@romarssieverything9667]

yes hw said 1 but wrote 0(he must have said 1 by mistake)

[@generalspha5721]

it was a mistake...

[@marcusthedrawer8606]

We can simply say that he is still a human who commit mistakes.

[@ginac9274]

This was a good video, but you never mentioned the 6 ohms until we went to solve for I(L).

[@andrewcarter215]

I went looking for a comment about this because I was confused about that too lol! Glad you noticed it too

[@wesleyjones4036]

thats all im looking for

[@mr.bluepickle9437]

I was pretty lost too, nearly rewatched to see if he had mentioned it before

[@ScorBiduBiduXI]

So where 6 ohm come from ?

[@andrewcarter215]

@@ScorBiduBiduXI it was just in the initial problem and he forgot to add it.

[@thakursumit_10]

"Bro, that was incredible! You just cleared all my doubts with such an amazing lecture! ❤️ For those who might be confused about how Sir is calculating the potential at each point (like the 12V at the beginning), here's a breakdown: In a circuit, there's a potential drop when current flows through a resistor, which is calculated using the formula V=IR. If there's no resistance (i.e.,R=0), there won't be any potential drop. Hope this clears things up! ❤️"

[@adarsh5997]

thanks so much man, you're a last minute savior!

[@oreostar1801]

This channel is actually helping me in school. THANK YOU

[@mr.blueitachi5258]

Wtfff who the fuck teaches this at school?? This shit is at college's level

[@RohitSharma-iv8lk]

@@mr.blueitachi5258 don't u know I m in 12th standard and this is in My Syllablus

[@muhammadirhamshaari4568]

@@mr.blueitachi5258 hahahah yeahh me too, but he literally mentioned this channel not this video. so he was literally correct lmao

[@orlanyllanoautohubone9459]

im 10 and im studying this lol

[@binodtharu8348]

@@orlanyllanoautohubone9459 same here came here after going on physics galaxy channel where i had some confusions which this channel resolved

[@undeada-man1920]

You're an amazing resource for all of my classes this semester. Thank you so much for all the help!

[@usuis8541]

if you dond mind can you explain how he got the load resistor 6?

[@karllouisvillarinintino2328]

@@usuis8541 load resistor 6 is already given

[@canmalatyaloglu8690]

What is better than a coherent and comprehensible educational video for a student? Thank you so much ;)

[@kyleberlin6990]

If only we had coherent and comprehensible teachers

[@Ahmed-wn1wo]

I just wanna say big thanks to you man for publishing all these videos you're great person ❤❤ I was randomly scrolling through youtube where i saw one of your videos and remembered how much they helped me back in the days when i was studying computer engineering.

[@tapiwanashemalvin1363]

I can't believe this man literally exists,like I mean ,mann he's so packed with information. Thumbs up Mr Tutor 💯!!

[@eleftheriasioyla689]

Helpful! But why the load resistor is 6 ohm ?

[@Teezy777]

I also didn't see his 6 ohm calculations

[@rohailytacc]

@@Teezy777 the question will tell h what the load resistor is

[@WilliamGyabengJunior]

I've been journeying with you right from Junior High school. "Thank you" isn't enough

[@highlights973]

This Guy made me Pass with flying colors my High school Studies Much Respect I am happy to see he has got 4.77Million Subs

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Finished my degree in record Time Degree in Applied Chemiatry. Because of this guy❤❤.. 2018 to 2020 been fun with this guy😢😢❤❤❤the best Tutor ever

[@1Alphaofallalphas]

Great. I'm starting to see a pattern in solving for Thevenin circuit. Thank you!!!

[@danielmoreno9935]

What’s the pattern???

[@camilofajardo9199]

​@@danielmoreno9935 first equivalent resistance making the short circuits and open circuits then apply KCL or KVL to find the voltage or current (in case it's Norton's) with the sources on and create the circuit in serie (thevenin) with the two given information

[@5CU11Y]

A months worth of lectures to study for the morning. Here we go

[@rockaxorb1342]

Probably one of the best videos on thevenin

[@kjkardum]

How are you so good at teaching. Most people ask how are you so smart, but many people can learn the stuff you know, while very few (if any) can then teach it as well, and not just one subject, all of them.

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Exactly!! I mean If you're an engineer and you're working hard to get your degree, so you study all of these subjects like chemistry,math, physics and etc. So basically you know all of that at some point. I mean, it's still impressive but what fascinates me more is his teaching skills.

[@alierenozylmaz3488]

WOHOOOOOOO LET'S F... GOOOOO. THIS IS THE FIRST CIRCUIT I SUCCESSFULLY CALCULATED THEVENIN. LET'S GO BROOOOO.

[@wtfooqs]

i learned more watching this 9 minute video than i did on my 1 hour 30 min lecture class

[@sizibalinapoy2310]

I understand you better than my lecturers, thanks for the effort.

[@borisbakardzhiev1673]

I actually learned a lot from this guy. Thank you keep the good work you are doing!!

[@ackinito]

Nice demonstration. At 4.30 you said the sum of currents is equal to 1, but should said zero, however you did write down the correct value. At 6.24 you wrote 34.4 Ω instead of 34.4 V.

[@giggachad23]

I was looking for this because this confused me as well. Glad to see this comment that helped fix the confusion!

[@Bruceillest101]

@ 7:15, where did the 6 ohm resistor come from?

[@mklinger23]

That was just the value that he chose for RL. It would most likely be given on a test or something

[@ShadowBeast]

@@mklinger23 What if it's not given?

[@bsh8566]

@@ShadowBeast then you solve Req normally without adding the RL to it

[@森-p6m]

@@bsh8566 Thank youu!

[@ranky1374]

Where did the 6 ohm load resistance come from? I'm using this as a part of a study guide for my Circuits exam.

[@anthonysta.iglesia7607]

Same hahahah im confused where the hell is that 6 ohms load comes from😂

[@ranky1374]

@@anthonysta.iglesia7607 I think it must've come from the example problem he got it from. I'm just assuming lol.

[@irenee6064]

I was gonna ask the exact same thing. He said "which is what i wrote down before" but i dont recall him writing anything like that lol

[@user-ty6ee9gn2o]

thanks for that I was so confused too

[@user-ty6ee9gn2o]

6:00 he also didn't multiply both sides by 20!

[@TheLeontheking]

Very helpful as always! I like that you verify the results at the end by solving for the different values!

[@RishiVaish-ym1nr]

Ahh i got this!!! Thank you so much sir 😁🎉

[@FourTweny]

He should be given a Nobel prize or something. If not for all the engineers he got through university and others he helped then for the shear amount of positive comments he gets.

[@reddragon8741]

Can you explain where certain numbers you came up came from. Like dude tell me how you got zero and then rest. You made me switch videos. Thanks guy.

[@nova-mh1sf]

u are better then my chem teacher i listen to u from now on

[@hralyb3513]

Literally, thanks. I was trying to understand this method for month now thanks (:

[@Muhadlie]

crazy things about this guy he know almost every math and electrical problems

[@anindyasur9384]

The man, the myth, The Organic Chemistry Tutor. God bless your soul for dumbing stuff down for us panicking students!

[@taliab7427]

You saved my life bro thank you so much.😅

[@aiman3823]

Where 6 ohm came from (RL) 6:51

[@hishamawan16]

Bro Aiman It’s the value of the load resistance.

[@elinajankovskaja3132]

@@hishamawan16 yes but where did he get it from, how did he calculate it ?

[@hamstertiff99]

LemonCurd he didn’t calculate it, its just a given value he didn’t write down earlier

[@rishuyadav3551]

I was having same doubt

[@53_ganindraanggaraputra44]

@@hamstertiff99 You mean that was already given by the question is it ??

[@KilluaZoldyck-nu4ev]

The Organic Chemistry tutor is the universal daddy.....

[@fisforfriendship6093]

where did you get the load resistance of 6 ohms from i rewinded from start you never assigned a resistance for the RL

[@Festus2022]

I agree. He never said said where the 6 ohm resistor came from. I think he just picked as an "example load".

[@fisforfriendship6093]

@@Festus2022 ive been watching his other videos i think this might be a 2 parter or something and he reused the 6 ohm from that circuit

[@ashsaha5750]

Let's take Load resistor as 6 ohm...take different value, will be given in the question, don't consider it in Thevenin's resistance, it is the step of solving Thevenin's theorem...

[@Mursal-mohamed]

You are the best totur on You tube Thank you a lot

[@iooioo553]

This channel still alive wow im impressed

[@paul8736]

Hello sir, you've totally forgot to calculation the value of the load resistor. But I do continue to thank you for your lessons that had helped me immensely.

[@GavinosuHighlights]

Parallels can also be calculated as the product over the sum of the resistors. Never has it not worked. That's what the equation simplifies to.

[@ballhouse155]

Thank you for this............................................ ☺☺☺☺

[@jdoge10]

Source transformation makes this problem even easier in the beginning! I got the same answers as well using that method. Try it out!

[@wankhairolyusri9449]

hey,do u know why should the 310=9Vc should be over 9 for both sides?i am new in this

[@realthor5372]

@@wankhairolyusri9449 its just that he simplified the numbers. Added up the vc to -9 and moved it to the other side, so it becomes positive. And added up 250 to 60, thus giving you 310

[@DavidCycles]

For the case of the thevenin voltage, why cant you use the potential divider formula?

[@pawanjotjas2066]

You don’t have to do nodal analysis at all at that 4:06 , just do a quick source transformation for the Voltage source putting an upward facing current source of 50/4 Amps parallel to a 4Ohm resistor. After that Add the 50/4 and the 3Amp current source as they’re both in parallel whilst also adding the parallel 5 ohm , 4 ohm resistors. Then just do V=IR which results in 31/2 times 20/9 = 34.4V .

[@lahirushashika989]

Thank you sir..I learned lot of lessons from you♥️🙏

[@davenandrew7292]

Thank you. I am passing my college semester exam because of you.

[@Hagoyff]

God bless you for making studying so much easier

[@Gravityys]

Have a midterm tomorrow and you just saved my ass, thank you.

[@guilhermereichardt916]

Very well done! Thank you for this lesson! Greetings from Brasil

[@SR-oy5ou]

Thanks man you saved my life

[@park_juehwan]

im confused where the six ohm come from 6:48. did he just chose one? im not good at english sorry.

[@soojin361]

It's the load resistance which was removed previously

[@ananasexe558]

You should make a video about why you know so many subjects well, it is quite impressive

[@electricalengineerriazul]

wowww......Great Brother very helpful , i solve this math.....

[@davelevison7252]

at about 1:30 why does it not work to add (1/5 and 1/9) + 4 when the 9 and 5 is in parallel and the 4 ohm is in series with them?

[@vallereal97]

these videos boosts my 32.33 repeating of course percentage of survival.

[@rockyreynolds739]

At 4:10 you state that "According to Kirchoff's current law the sum of the currents flowing in and out of a junction is going to add up to 1."

[@jtendarkside8194]

At 6:24 you write down 34.4 Ohms for Vth it should be Volts, later in the video you switch to volts.

[@Sirjohnwilliamuk]

My brain literally fried in this instance paused the video smashed some furniture, had a fight on the street,kkk, my hands were like Vth = voltage. Carry on watching was like ok okkkkkaaaayy so its voltage.

[@hamzamudassir7632]

you are a legend living legend

[@AA-jj5xn]

wow, this guy is teaching more than my uni prof

[@dejahnash4930]

How do you know what resistor is the "load resistor" /How do you know which resistor to remove?

[@daliaao2964]

How did we solve for RL to equal 6ohms?

[@pokemonXD1]

At 5:49 you multiply 50V by 5 and then you add it to the 60A. Is this actually correct? I ask because You didn't keep the units while performing these calculations.

[@near3394]

6:23 Volts, not Ohms.

[@kakabraza8869]

This guy is the best ❤

[@heimito9657]

It helped me a lot for my school

[@mfuegz9134]

Why did he multiply by 20 @5:26 ? Does it have to be 20 or is it just a random number?

[@fakku7253]

hey if u still don't know by now, 20 was multiplied to simplify the equation, also 20 is lcd of 4 and 5.

[@patricksamura6872]

Where did you get 6 for load resistance from?? It wasn't in the initial circuit diagram.

[@anthonysta.iglesia7607]

Where did you get the 6 ohms load resistance?

[@frankkimani6711]

yes please i have the same question where did the six come from in the 6:57mins

[@mdmahfujurrahman5467]

A and B poin resistance 6 ohms which we thought load resistance

[@p4jeon219]

this guy is a SAINT

[@AndrewTiitii]

Tmo is my exam but I pretty sure I'll pass because of this legend

[@Ben-jo7nh]

may I ask why the 4 ohm is in parallel to the 5ohm resistor, not the 9ohm is in parallel to the 5ohm resistor? 1:27 thank you

[@mikejb7843]

Hey did you ever find this answers?

[@HAJI_MUHAMMAD_ABDULLAH]

Because we are solving from LHS

[@mou712]

just imagine there is current passing from a to b the current i will be devided between the 4 ohm and 5 ohm not between the 9 and 5 ohm

[@TheDarkenedFlames]

Move the 4ohm resistor around the corner to its left and it now even looks like it’s parallel. Either way, parallel means their ends are connected together, which is true for the 4 ohm and 5 ohm resistors. Each of their terminals connect together.

[@JoycePaguia]

why the hell my professor teach this for 2 hours and I didn't understanding a thing and this video is almost just 10 mins. and now I understand this theorem.

[@ivanteo7701]

Maybe your professor teaches in a way that was unclear and confusing manner

[@Quagmire22]

VERY HELPFUL! Thank You!!

[@ayeshafaisal7949]

Okay but how did he know that Rl = 6 ohms in the end?

[@stixsenpai5247]

wondering the same thing

[@wuwuw5433]

@@stixsenpai5247 I think it's a given

[@Jeremiah.k]

Yh he said thats what he wrote down before but he didn't, just plucked it from thin air. It's stuff like this that triggers my anger issues ;(

[@SUDARSHANKULAL-j3f]

The question will provide the value of Rl.

[@tysonliu2833]

sth i never understood in my 1st year of college so well explained in a 10 mins video, not sure if its actually worth all the time and money to go thru college

[@christopherteo4446]

Where did he get the 6 resistance on the last solution?

[@JohhnyBasedDepartmentDab]

pls help

[@RishiVaish-ym1nr]

It was given in the question already.

[@eggxecution]

3:28 I'll take note of this, if there is open circuit then there is no voltage drop to VA. That means Vc = Va or the voltage on one end of the resistor is = to other end of resistor and not 0V I finally got it lol

[@RishiVaish-ym1nr]

Thank you so much sir 😭

[@Chan-ux7ej]

I very much needed this. Thank you so much

[@todeyemi7059]

Ye?

[@陳翰儒-d5m]

So well explaination, you save my time ! Thank you really much.

[@seongsubyeon6219]

How can we cosider the load resister as "open circuit" to calcuate Vth(Voltage-thevenin)? For the calculation, you assumed that there is no current flowing over the register (9 Ohm). Does it really make sense? I need your advice on this!

[@mesozoicllama8050]

there's no current flowing over the 9 ohm resistor because there's an infinite resistance across point A and B due to the presence of air in between the two points ( since air acts as an insulator) so current is negligible, almost zero.

[@stonerdave]

for the Thévenin circuit we remove the load resistor

[@firstlegend5105]

To find the Thevenin Voltage, we have to assume the load resistor to be an open circuit because that's the variable that we want to measure. i.e. The current across the load. The will be no current flowing through the 9 ohm resistor since there is an open circuit across the path A to B and so all of the current will be flowing through the 5 ohm resistor. There will be no path along an open circuit

[@akmalfaiz7094]

Who's watching this while online learning and dont understand the lecturer talking too fast?🙋that moment i quickly move to yt😌thank you so much