03 - What is Ohm's Law in Circuit Analysis?
ฝัง
- เผยแพร่เมื่อ 14 พ.ค. 2024
- 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..
The fact that this video is out for free is truly a gift. Thank you so much.
Just can't believe , I am experiencing this amazing explanation free of cost .....It's a gift to me that I found this channel......
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you could add a gift to keep him helping us.
I feel the same way. It’s a blessing!
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I'm a licensed contractor and have over 30 years in the industry. This guy is amazing. He explains Ohms Law perfectly. Great Job :-)
Greatest teacher of all time. No one ever explained things so clearly and beautifully like this! I am now hooked. Thank you sir🙏🏾💯
Thank you so much!
Jason, MathAndScience.com
AGREE
What the name for the next video thank you so much
@@parada542 look up AC circuit analysis vol 6-3 in the playlists
Agree. Excellent teacher. Thank you (I wish I could draw as neatly as Jason too - when I present it's a total spider party!)
the moment you say something, I have a question in my head, but the very next sentence you speak answers that question immediately. You're an amazing teacher, I really appreciate all the effort you put into making this accessible to all of us. Thank you for giving me that confidence!
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😭
I love how he emphasis a lot on important concepts using analogies. When I was studying electronics back in the old days, I accepted a lot of concepts the way it is and not really understanding why. After watching these videos, I.m going,...now I understand.
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I was lucky to have all teachers who knew their discipline.
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I love your videos, I'm just getting into engineering and electricity and am happy to be being taught by you. Your videos after lesson three seem to all be trimmed down to 4 minutes and then cut off. I hope you upload the full length videos, I'd love to continue following your lessons!
People like you are the real heroes. Conveying your understanding to others for free and no ads even.
I'm a licensed electrician plumber air conditioner technician and professional carpenter
NOW
I'm from San Pedro Belize central America and to be honest I have twenty years experience and I have to say
we never stop learning
each time I review there's a pinch of something I missed out
thank you very much Sir
God bless
I am training to become a USPS Maintenance Mechanic for the mail machines and I have to cram everything about Electricity within a short period of time. Feeling overwhelmed. But after watching this video I’m starting to feel a lot more confident. He’s such an AMAZING teacher! He breaks it down with examples and multiple explanations repeatedly! Exactly what I was looking for! Now I don’t feel like an idiot for not understanding this. LOL 😂 Thank you so much!! 🙏
How’d the 955 go? I’m taking it soon, just wondering.
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The most lucid and clear explanations of basic electrical and electronic components i have ever attended online or offline in my career spanning 30 years.
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.
This series is awesome. Thank you so much for uploading.
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Good teacher
Thankyou gues iam stadeyok
I wish I had u when I was in Studying Electrical Engineering. You are by far is the best!
Your analogys and ability to not go off on one and keeping it on track and simple are the reason (for me anyway) that make you easy to follow and understand. I've watched many videos before you that are supposed to be the basics but they can't stick with being simple,its a talent that makes a great teacher. Thank you :) I've bought some basic electronics packages to try these things out in practice.
I'm not even studying electricity or anything related but it's always nice to have this kind of knowledge. I find these videos very enjoyable. Science is beautiful
I'm very happy to get him as an teacher... No one had ever explained the things like this to me... Thank u at lot for the videos❤
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!
I ran into this playlist trying to brush up on electronics after not having done much with it since high school decades ago. This guy is a _fantastic_ teacher, thanks so much!
I am new to all of this. Really with Zero experience. But he makes the topics so interesting and easy to understand. Great.
I really like this method of teaching.
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.
I thought I was the only one who was going to say what a fantastic, great teacher he is. He is keenly aware of what questions and thoughts most people have about electricity and electronics. When you explain things the way you do, especially the basics, it helps that person or student to understand better and to build up the confidence to want to learn more. I'm not sure what your full name is but thanks for doing a job well done.
What an excellent teacher
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
I have taken many courses and saw many professors/instructors, but never like this one, truly amazing.
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.
My God, you are the best greatest teacher on earth, I don't know if there is or not anyone else that I know that teaches so clearly in detail, you should be an example to the entire world's education systems this is how everything should be taught , instead of long boring lectures, or reading books that are so hard just to understand what they are trying to tell you, because the way books are written is very official language which I abhor, a simple concept that can take one minute to understand takes hours, because the way these evil books are written , the concepts of science, math and everything else are not hard to learn and are actually fun to learn, if it wasn't for these official languages that are used in all books, I am so sick and tired of them.
This is how everything should be taught in all schools. Simple, fun and clear. They should learn from you, you are the best and made a big difference in my life, truly American teachers are the best too at teaching. But offcourse your ways of teaching makes it the 👌 best.
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!
I just started automation and manufacturing which involves a lot of electrical, and I can tell you that these videos are very helpful.
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.
😁👍
i am trying to get into electronics. and your course has been very helpful as a pre-study resource.
I am from Morocco and I understood well despite my weak English language .... Thank you very much ...
So... your English isn't bad
@@eng560 a a
ayyy moroccan gang
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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!
Thank you for explaining it really clearly. Can you also talk about series and parallel ?
Excellent lessons. Thank you for taking the time to teach others!!!!
Watching on a Sunday morning for pure enjoyment . My own formula I created S=IW where our variable s = success the variable I = Intelligence and the key factor W= work (Work X Intelligence = Success) . Therefore a lazy but intelligent person could actually be superseded in the work place by a less intelligent person who worked incredibly hard
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!
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
Indeed this is the greatest teacher ,,,,i love the explaination because it is very clear
After an exponential amount of time, I’ve got it. Thank you! 👍🏽🙏🏼
Brilliant.. All through high school I struggled without understanding potential drop... This guy guy clears everything in less than an hour. Thanks very much.
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!!!
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!
Great teacher!! That why I’m back after two years. To Refresh my memory
After years of listening trying to get it down it all makes sense now. Very impressive teaching
Thank you so much for your kind assistance in all the lessons that you have genuinely tried to teach the best way you could .
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Thank you this is exactly what I was looking for.
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.
I’m doing my PPL theory and have the same issue . Agree with you entirely. Did you ever find that book?🙏
@@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!
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.
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.
you truly are a MASTER, Sir! Thank you! "If you can't explain it simply, you don't understand it well enough" -Albert Einstein.
I wish I could have met E = mc2. I’d like to spend the day with this guy too.
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If we would have many teachers like you.
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Sir i'm sow happy to fined your page and it give me hope that i keen study electrical for free. god bless you.
The lesson is amazing, and intesting I really got something of it.Thank you my lecturer.
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.
What a great teacher ... it's much like me, a blind guy seeing the entire movie in my mind.
Where is Lesson 4 ?
today i have found my last stop where i can study everything of my life.God bless this tutor and his families all
What does god have to do with the current change in your life?
Glad I stopped by! Never has Ohms law been more clearly explained
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.
Damn you are so great! if I had such a teacher during school or college, I would rather be an engineer at least!
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.
Thank you. I was getting a bit confused.
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)
For as simple as ohms law is it is a head scratcher for sure. Need to watch this again. Thank you for your much needed help.
Beginning a journey into guitar pedal building. This is a fantastic starting point, thank you!
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?
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)
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).
@@doctorluzbubs258 Current is constant in a series circuit. Voltage is constant across parallel circuits.
@@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.
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
Even a child can understand. Teachers with Phds and masters have little or no skills of representing lessons to students
Good day am from trinidad.About 30 years now i am trying to learn electronic,i know i have a memory problem but when i came across this teacher he explain things very simple i wish i had found him years ago ,he,s the best
Very very interesting, I love the lectures so understanding and explanatory.
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?
go back to the video and start at the 17:00 minute mark. Hope this helps...
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 ✌✌✌
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.
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.
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.
I'll be back , when I finished studying the spanish and German languages
What an absolute legend! Great teacher and so easy to follow!!! All the way from Scotland!
A gift we'll used. You have a gift of teaching, keep using it to better mankind. Thank you Sir, I salute u.
Where do I continue from now ? where is the next video?
Johnny Minter
Go to MathTutorDVD's playlist and it's under the "Engineering Circuits - Vol1"
Thank you so much!
Finish this, you are graduate .
I never leave comments but you are the most amazing teacher ever wow ! You truly have a gift thank you so much !!!!!
Excellent teacher!….sir, you’re a bless to all of us, you explain everything so clear.
Thank you for making these videos, my teacher expects us to already know all this in introductory classes!
Your instructor technique is amongst the best I have seen.
I'm training to be electrician these videos are brilliant to help learn the basic circuits and ohms law.
this is the best lecture I have ever received on ohm's law.
Sir... I thought you should know that your videos from many years ago are still currently teaching people. ...like me. I now understand Ohm's law, because of you. Thank you, from 2022.
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
Excellently explained the Ohm's Law.
Wonderful teaching method .
Thank you for this video aswell as the others I’ve been watching since episode 1
You are very good at explaining these concepts. I am in an energy systems associates course and my teacher goes so fast that’s impossible to keep up with him for me ( taking notes, doing calculations and absorbing the material. We have a 2 hr electrical theory class like three times a week and we have already “covered” 4 chapters of the book. and when I look through the book it is asking much more detailed questions with more complex circuits than what he shows in class. I am grasping the basic mathematical concepts but having a tough time interpreting and building from schematics. His schematics are very simple then he blows through 50 ways to find values in a few hours. It’s very frustrating, especially when he gives 11 page homework sheets with trick questions and concepts that we either haven’t touched on or just barely did. Doesn’t help that I broke a finger in my dominant hand making me slower to write and make calculations on a calc in engineering mode. You give great, concise and understandable examples, I wish I had more time to watch your vids but I will continue where I can when I get confused. Thank you for doing this.
I really appreciate for imparting you valuable knowledge with all of us....you are really great....thank you so much
I never understood Ohm's law but in this lecture everything is clear as water
Not just water, but clean water
He is very good , a talented Trainer/Teacher . He fully Understands the subject Content.
Enjoyed the series on circuits. You're good at explaining! I've always wondered how transformers increased or decreased voltage. I remember my electric train transformer in the 1950's. I watch your videos "just for fun".
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
What a great delivery! I wish I had professors like him in each subject I took. Simply superb.
Thank you so much!
Jason, MathAndScience.com
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
Great explanation on Ohm's Law and voltage drop!