03 - What is Ohm's Law in Circuit Analysis?

Get more lessons like this at www.MathTutorDVD.com
Here we learn the most fundamental relation in all of circuit analysis - Ohm's Law. Ohm's law relates the voltage, current, and resistance together in a single equation and is used in all analysis of electric circuits..

Пікірлер: 910

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    10 ай бұрын

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    8 ай бұрын

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    6 ай бұрын

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    Ай бұрын

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    @MathAndScience

    5 жыл бұрын

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    4 жыл бұрын

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    4 жыл бұрын

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    4 жыл бұрын

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    @fahyconor

    4 жыл бұрын

    Agree. Excellent teacher. Thank you (I wish I could draw as neatly as Jason too - when I present it's a total spider party!)

  • @salihtaysi
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  • @irshadabdinassir4598

    @irshadabdinassir4598

    2 жыл бұрын

    sm1 pls help.idk y i cant understand smthin. i expect the current to slow down after it passes thru the resistor but its the same thoughout the whole circuit.My brrain cant comprehend😭

  • @jimrudolph2864
    @jimrudolph28643 жыл бұрын

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  • @kindreddarkness
    @kindreddarkness2 жыл бұрын

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    @MADXBLU Жыл бұрын

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    @johnskariah1233 Жыл бұрын

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    @Rakiza Жыл бұрын

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    @bradleysmith6815 жыл бұрын

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  • @barbsblogs1563
    @barbsblogs1563Ай бұрын

    I am an amateur radio enthusiast and this is one of the best ever ohms law explanations iv seen 👌

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    @ecco2563 ай бұрын

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    @user-qr9qj8wd2fАй бұрын

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    2 жыл бұрын

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    2 жыл бұрын

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    @LahsenBenwabte5 жыл бұрын

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    @eng560

    4 жыл бұрын

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    @pablolynch1152 Жыл бұрын

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  • @MathAndScience

    @MathAndScience

    Жыл бұрын

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    @nicholasparsons52543 жыл бұрын

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    @aedaldaniel2 жыл бұрын

    I never understood Ohm's law but in this lecture everything is clear as water

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    @thompsonokeke9312

    2 жыл бұрын

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    @grahammacleod75933 жыл бұрын

    I'm now in semi-retirement with more time on my hands to explore topics I've always been interested in. The basics of electronics were always one such topic. I was always confused by voltage and resistance when imagining a water hose with a kink in it. His analogies and methodology are just what I've been looking for. Very helpful!

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    @AngelTaylorgang8092 жыл бұрын

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    @arthurlewis6103 жыл бұрын

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    @abdishakurshirar67684 жыл бұрын

    Really this is the best explanation, before this video, I'm warning for my exam but now I understood well, thank you so much sir

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    @thaihm3 жыл бұрын

    After an exponential amount of time, I’ve got it. Thank you! 👍🏽🙏🏼

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    @jonathanjudeoneildelisle4812 ай бұрын

    What an awesome teacher/instructor/professor. He knows this material so well that combined with his unmatched communication skills, he's top of the tops. Hands down! Talk about knowing your sh...He knows his sh...One can tell that he thinks at lightening speed. We're lucky to have him. Thank you.

  • @tannerkemp4046
    @tannerkemp40464 жыл бұрын

    I’m in aviation and electricity is my worst subject. This is ten times better than any textbook. That being said is there a book on electricity you recommend for a pilot so I can speak with the mechanics and understand what they’re saying? Thanks man, you rock! Smarter everyday.

  • @ajscain500

    @ajscain500

    Жыл бұрын

    I’m doing my PPL theory and have the same issue . Agree with you entirely. Did you ever find that book?🙏

  • @tannerkemp4046

    @tannerkemp4046

    Жыл бұрын

    @@ajscain500 so I’ve never found a book for “dummy’s” so to speak, however as I’ve progressed in my career here are a few things I could say to someone starting out in aviation. As a pilot it’s important to know what you can affect from the cockpit. While knowing your aircraft in and out will make you a more complete aviator keeping it simple to begin with will create the base you need to dive further. Start with your emergency procedures that deal with either alternator or generator issues. Be sure you can conduct the steps in the cockpit even if you don’t understand what’s happening behind them. As you progress, go through the operators manual and find the section that deals with the electrical system and components. From here identify what does what. Like “what does an alternator do?” Then what does an alternator do for my aircraft when it’s running then when it’s not. Keep in the operators manual page by page and look up things you don’t understand within the electrical system. Like a short circuit or a bad ground. Take it slow and you’ll be able to electricity in time, and most importantly how it affects you when something fails. I also highly recommend becoming your own mechanic. I started working on my trucks about 6 years ago and it helped me understand lycomings and eventually turbine engine operations. Good luck!

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    @yogendralakraj32143 жыл бұрын

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    @tyronethompson99622 жыл бұрын

    I'm training to be electrician these videos are brilliant to help learn the basic circuits and ohms law.

  • @richclayton5785
    @richclayton57852 жыл бұрын

    Glad I stopped by! Never has Ohms law been more clearly explained

  • @jackplace5665
    @jackplace56654 жыл бұрын

    Excellent lessons. Thank you for taking the time to teach others!!!!

  • @semtex6412
    @semtex64124 жыл бұрын

    you truly are a MASTER, Sir! Thank you! "If you can't explain it simply, you don't understand it well enough" -Albert Einstein.

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    @leesire

    3 жыл бұрын

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  • @dennishilton5365
    @dennishilton53652 жыл бұрын

    I have recently had to learn Ohms law for a basic exam, thank you so much for an easy to follow guide.

  • @MathAndScience

    @MathAndScience

    2 жыл бұрын

    Welcome!

  • @raybin6873
    @raybin68732 жыл бұрын

    This fella has excellent teaching techniques! Despite knowing /understanding Ohm's law from many years experience his presentation style keeps it interesting. So glad I stumbled across this channel. 😁👍

  • @abdixakiinosman8725
    @abdixakiinosman87252 жыл бұрын

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    @Muteb14

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    @Muteb14

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  • @manuelcabrera126
    @manuelcabrera1264 жыл бұрын

    What a great teacher ... it's much like me, a blind guy seeing the entire movie in my mind. Where is Lesson 4 ?

  • @kirkslayden9152
    @kirkslayden91522 жыл бұрын

    Well I am so blown away I just turned 65 in 1974 of December are you entered the army my AIT was electronics I don’t remember them having a ohm meter and at that time I didn’t know how to read one so they had these boxes or stereos or whatever it was and they were telling me that I had to find where the break was somewhere on the circuitboard I guess I’ve always been intrigued with electronics but I knew nothing at that time I just wish they had somebody like you back then I think I would’ve made it in electronics I left the same day that Vietnam was over five Dash 20 Dash 1975 not knowing how to read or write it destroyed me God bless you my brother and I hope God blesses you with much more

  • @fereshtehrajabikouchi9464
    @fereshtehrajabikouchi9464 Жыл бұрын

    My field is chemistry and I had a hard time for a long time learning about circuits!! This video was the best one! I love the method that you have for teaching!!!

  • @cindyi7098
    @cindyi70984 жыл бұрын

    I love the way you explain everything in your lessons! Sir, you are above any other teacher I have seen in my life. You are unique teaching science!!! I want to own your curses. God gives you long LIFE. Tank you so much!

  • @gerwinong4254
    @gerwinong42545 жыл бұрын

    Thank you for explaining it really clearly. Can you also talk about series and parallel ?

  • @ceurwyn
    @ceurwyn4 жыл бұрын

    I studied Electronic Engineering for 2 years at a college, yes I admit that i was young, easily distracted and uninterested at the time I was studying there. I somehow passed the course. But I've learnt more in this video than I did before. the difference is that he tells you why you would want to do this! My tutors just told you how and didn't give it any context! This Guy is a great Teacher! Thank you for creating this video series!

  • @eskinderhaile8501
    @eskinderhaile85013 жыл бұрын

    I have taken many courses and saw many professors/instructors, but never like this one, truly amazing.

  • @jaydakeyz2092
    @jaydakeyz20925 жыл бұрын

    I also love the fact that you remind us of certain concepts such as the voltage drop across. Really helps engrave that in my head

  • @jafethouru9610

    @jafethouru9610

    3 жыл бұрын

    Indeed this is the greatest teacher ,,,,i love the explaination because it is very clear

  • @isaackudjo2799
    @isaackudjo27995 жыл бұрын

    today i have found my last stop where i can study everything of my life.God bless this tutor and his families all

  • @xXxserenityxXx

    @xXxserenityxXx

    4 жыл бұрын

    What does god have to do with the current change in your life?

  • @JOEZEP54
    @JOEZEP545 жыл бұрын

    This is the second video of his that I watched. The way he explains this topic is very easy to follow & one of the best I have seen.

  • @pitifullyobvious3036
    @pitifullyobvious30364 жыл бұрын

    This is the future of education and training of any subject even for the poorest thanks to you-tube. The best and most talented teachers can video lessons and any student in the World with a cheap old PC connected to the internet can learn almost anything from the best. Colleges and Universities could become obsolete. The teachers can distribute their lessons directly without needing a classroom and get rewarded via you tube. First learn English as it is the Worlds common business language and the World needs a common language.

  • @user-jt6ph2fs7w
    @user-jt6ph2fs7w3 жыл бұрын

    Great teacher!! That why I’m back after two years. To Refresh my memory

  • @maiaharnauth6480
    @maiaharnauth64805 жыл бұрын

    you're an angel. thank you.

  • @Imbrudom
    @Imbrudom14 күн бұрын

    Great teacher of theory, application, analysis of the circuit that anyone understand .❤

  • @kima5316
    @kima53163 жыл бұрын

    Brilliant.. All through high school I struggled without understanding potential drop... This guy guy clears everything in less than an hour. Thanks very much.

  • @jpdiscovers8670
    @jpdiscovers86704 жыл бұрын

    Thank you this is exactly what I was looking for.

  • @policarporeyesjr7074
    @policarporeyesjr70745 жыл бұрын

    Sir i'm sow happy to fined your page and it give me hope that i keen study electrical for free. god bless you.

  • @monkeyrilla
    @monkeyrilla2 жыл бұрын

    This guy is great at teaching this stuff. I had no prior knowledge but this makes so much sense

  • @rothschildianum
    @rothschildianum4 жыл бұрын

    Every electrical engineering student should listen to your lecture, before they start their first year. After 29 years graduating with EE, I have never touched this stuff or worked as an engineer, but surprisingly I still remember.

  • @amintoloo7601
    @amintoloo76014 жыл бұрын

    Damn you are so great! if I had such a teacher during school or college, I would rather be an engineer at least!

  • @frizzyred1292
    @frizzyred12924 жыл бұрын

    When talking about the voltage drop in the first couple of examples you talk of it like its something different from the voltage source, but its the same amount. I think this makes it a bit more confusing.

  • @madeleineruusu

    @madeleineruusu

    4 жыл бұрын

    Thank you. I was getting a bit confused.

  • @oneeyemonster3262

    @oneeyemonster3262

    4 жыл бұрын

    why??? the resister ABSORB it..so whatever is left over. You know....like a dimmer knob or POT...which is just a variable RESISTOR..You know....when the knob is at Zero...it has crapload of RISISTANCE..when it's on 5....it has you know 2 ohm . When you crank it all the way up on 10...it has Zero ohm. Different ACTIVE components has different voltage requirements...You basically use resistors to adjust to different component input...such as an LED is only 3v .if you had a 6v source...you'll need to drop it to 3v into the LED.......but the motor is still using 6v. or lets say..you had 8-12V esc for a motor...made in china. People say the fan keeps crappy out becuase it cant handle the 12V...becuase there's only a 1v-9v cooling fan. You can install a resistor to the fans input to drop it's into voltage to below 9V...instead of disconnecting the fan to save the fan ( which will kill your esc..lmao)

  • @SamNDolueAndroidSolution
    @SamNDolueAndroidSolution2 жыл бұрын

    Sir, you are the best instructor I have ever met. I want to do computer engineering with low math and physic skills but from your explanation as clear as it is, I can be a good student if I continue to watch your tutorials. Thank you ever so much.

  • @zuhairsheriff9256
    @zuhairsheriff9256 Жыл бұрын

    My stumbling on to these lessons has been God sent. I am a DIY enthusiast wanting to learn to add sockets spurs on a ring. I have a few questions but feel this right here is not the appropriate forum. Would love to be able to place questions to one of the best teachers I have come across.

  • @arthurbenentt1508
    @arthurbenentt15085 жыл бұрын

    i see the general flow but 1. how does the current remain the same? i thought the resistor acted to constrain the flow of current? shouldn't it decrease after the resistor constrains it? aren't fewer electrons flowing after the current goes through the resistor? 2. if the measured voltage across the resistor is described as a drop in voltage does that mean the the resistor has absorbed energy from the battery? does this manifest as heat?

  • @doctorluzbubs258

    @doctorluzbubs258

    5 жыл бұрын

    I was wondering the same thing but i think these examples are perfect scenarios in which the battery never runs out of charge (through heat - like u said) I imagine resistance as running through the street normally, struggling through sand, then back to the street. At the end you still ate 2500 calories but you burned maybe about 60 in a small circuit. And now your left with (2440 calories) btw Calories = HEAT (related to "calor" or heat in spanish)

  • @vyarovoy

    @vyarovoy

    5 жыл бұрын

    Resistor acts as a filter in a way, it filters energy out of the circuit (and dissipates it, it is warm/hot to the touch as it does it). As the law of energy preservation states, if work is performed the energy of the system (circuit) decreases (to paraphrase it), the work being "fighting that resistance" + heat. That means the available energy for pushing the current AFTER the resistor is less (ie voltage drop). Power is P = V * I (don't confuse with Ohm's law), energy is P * t (time).

  • @billiemfan

    @billiemfan

    5 жыл бұрын

    @@doctorluzbubs258 Current is constant in a series circuit. Voltage is constant across parallel circuits.

  • @arthurbenentt1508

    @arthurbenentt1508

    5 жыл бұрын

    @@vyarovoy that makes a lot of sense. i guess the fact that the current remains constant throughout the entire series circuit is due to the affect of ALL the resistance.

  • @fuorman4872

    @fuorman4872

    5 жыл бұрын

    I know that's weird to me too but after googling i understand it: Forget ohm law in this case Current is constant in a series circuit. Example current is the same after R1 R2 R3 Voltage is constant across parallel circuits. www.electronics-tutorials.ws/resistor/res_3.html

  • @maienduo
    @maienduo4 жыл бұрын

    Even a child can understand. Teachers with Phds and masters have little or no skills of representing lessons to students

  • @jariatuuu6355
    @jariatuuu63553 жыл бұрын

    I never leave comments but you are the most amazing teacher ever wow ! You truly have a gift thank you so much !!!!!

  • @TheMaxi748
    @TheMaxi7483 ай бұрын

    14:55 absolutely great analogy that made everything make sense, wow what a great teacher

  • @abdellh8079
    @abdellh80794 жыл бұрын

    I'll be back , when I finished studying the spanish and German languages

  • @candiceford88
    @candiceford886 жыл бұрын

    I dont quite understand. How can the voltage going down the resistor be the same at the beginning of the resistor and the end of the resistor. In other word wouldn't the voltage that is before the resistor be higher before it hits the resistor and go lower after the resistor?

  • @richardfoutch180

    @richardfoutch180

    6 жыл бұрын

    go back to the video and start at the 17:00 minute mark. Hope this helps...

  • @garethrowlands1305

    @garethrowlands1305

    6 жыл бұрын

    Candice Jones no mate purely because it was a simple circuit with 1 resistor I.e a 1 load ( could be anything) which is basically neutral you probably know if you measure between live and neutral you will get 240v in the UK So that's basically why .ohms law is pretty easy to understand really it's only a it bit of algebra . But when you start getting in to micro circuits and and pcb builds it's a different ball game diodes, capacitors, transistors,Inductors,that's what he was getting towards on the other circuit he drew . But the maths is always the same ✌✌✌

  • @harabas1

    @harabas1

    6 жыл бұрын

    Candice Jones When you put a voltmeter across the 1st resistor, you are measuring the voltage drop. Try putting a positive probe at the bottom of R2 and put a negative probe to ground, you will get 0 volt because the bottom of R2 is basically connected to the negative of the supply voltage.

  • @tomwold8269

    @tomwold8269

    6 жыл бұрын

    Candice Jones The split second current hits the resistor, no voltage drop occurs. But when the current has 100% finished going through the resistor then. The voltage drop occurs.

  • @McFarahGulled_CodeTrust

    @McFarahGulled_CodeTrust

    6 жыл бұрын

    Had R1 being 2 ohms and R2 also 2 ohms, the value of V1 is 8. I am wondering what would the value of V2 be? By using Ohms law, we get V2= 8 (that is, 4 *2). If we add V1 and V2, we get 16 = (8+8) whereas the original voltage was only 12. What am I getting wrong? For instance, shouldn't the current flow between R1 and R2 reduce to 2 or something like that.

  • @RichardFreeberg
    @RichardFreeberg3 ай бұрын

    Great job explaining the mysterious 'circuit drop' which baffles many. Probably because no one took the time to really explain it completely as it is here! Thanks!

  • @AbdoZaInsert
    @AbdoZaInsert2 жыл бұрын

    شكراً لك يا استاذي, يعلم الله انك افضل من شرح جزئية الكهرباء ومكوناته. افدتني كثيراً !

  • @johnnyminter6936
    @johnnyminter69366 жыл бұрын

    Where do I continue from now ? where is the next video?

  • @WILLRS85

    @WILLRS85

    6 жыл бұрын

    Johnny Minter Go to MathTutorDVD's playlist and it's under the "Engineering Circuits - Vol1"

  • @2001BornAgain

    @2001BornAgain

    5 жыл бұрын

    Thank you so much!

  • @kinglay8022

    @kinglay8022

    5 жыл бұрын

    Finish this, you are graduate .

  • @Shannon_Robbie
    @Shannon_Robbie Жыл бұрын

    You would have to add the resistors to use ohm's law to solve for current. If you try to use I=V/R to solve for each resistor you don't get 4 amps. 31:50

  • @rrw1418
    @rrw14184 жыл бұрын

    Thank you so much for your kind assistance in all the lessons that you have genuinely tried to teach the best way you could . You are amazing ! God bless you 🙏.

  • @xuaxace
    @xuaxace3 жыл бұрын

    After years of listening trying to get it down it all makes sense now. Very impressive teaching

  • @diegodelmar1190
    @diegodelmar11902 жыл бұрын

    I learned more in 10 minutes listening to you then four months of a semester an electrical class until you are my hero and thank you so much do you have a gift

  • @beepsheep5954
    @beepsheep59543 жыл бұрын

    Hello sir. I wanted to take electrical engineering course in college so even though i have zero knowledge about this course when i saw your vid i think im more confident to take electrical course thank you for free teaching. Love u sir

  • @skateitblank22222
    @skateitblank222223 жыл бұрын

    Felt nice to apply the concepts spoken about in the first 2 lessons. Looking forward to building more on this. Already getting ideas for simple household devices!

  • @paulprochan8853
    @paulprochan88532 ай бұрын

    Your videos are very informative and I'm watching them before sleeping. To get more knowledge about electricity. But your videos are like ASMR for me.

  • @Goodtimes523
    @Goodtimes5235 жыл бұрын

    One of the best teachers on the net - so glad I found someone who can speak clear English - too many Indian tech guys out there that can’t speak well in English. Here’s a like an a subscribe.

  • @brandongarcia3725
    @brandongarcia37255 ай бұрын

    God Bless this Professor who actually took the time and explaining everything very well cause this is very helpful🙏🏻

  • @hemofpraiseministryhemofpr3694
    @hemofpraiseministryhemofpr36944 жыл бұрын

    Very very interesting, I love the lectures so understanding and explanatory.

  • @charlesmavengere8242
    @charlesmavengere82422 жыл бұрын

    Great teacher of all times. I am hooked on

  • @HainKeropPoromis
    @HainKeropPoromis5 ай бұрын

    I come from a law and social science background, but after having watched your tutorial, I feel like I have learned more about electronics and electricity.

  • @brianngohofficial
    @brianngohofficial3 жыл бұрын

    thx for the lesson sir, these circuits and ohms law at first glance may seem intimidating but you explained it in a way where now I am feeling more confident.

  • @Skibidi_Male_X
    @Skibidi_Male_X Жыл бұрын

    My mind is blown that we get this knowledge for free from KZread. Great information sir thank you.

  • @MathAndScience

    @MathAndScience

    Жыл бұрын

    Welcome!

  • @kimhillary3509
    @kimhillary35095 жыл бұрын

    The lesson is amazing, and intesting I really got something of it.Thank you my lecturer.