03 - What is Ohm's Law in Circuit Analysis?
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- čas přidán 16. 06. 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..
Just can't believe , I am experiencing this amazing explanation free of cost .....It's a gift to me that I found this channel......
This is great Channel
you could add a gift to keep him helping us.
I feel the same way. It’s a blessing!
🤫 shhhhh lol
It's a blessing ❤
The fact that this video is out for free is truly a gift. Thank you so much.
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 was lucky to have all teachers who knew their discipline.
God bless great teachers
People like you are the real heroes. Conveying your understanding to others for free and no ads even.
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!
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Thank you for this beautiful video dear teacher 💕⭐🙏6 years later people still appreciate your lectures
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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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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 am new to all of this. Really with Zero experience. But he makes the topics so interesting and easy to understand. Great.
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❤
I am an amateur radio enthusiast and this is one of the best ever ohms law explanations iv seen 👌
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 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.
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 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!
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.
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 am glad I found him his page. He is a great teacher. I had to subscribe. I love his content. Breaks everything down, while assuming the audience doesn’t know everything. He is is great. Much appreciated
Good teacher
Thankyou gues iam stadeyok
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.
😁👍
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 🙏.
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 really like this method of teaching.
I am going to go ahead and get a subscription to stay busy throughout the holidays until my semester starts. Your teaching is just outstanding, I’m glad I found your classes.
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!
Excellent lessons. Thank you for taking the time to teach others!!!!
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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Your instructor technique is amongst the best I have seen.
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.
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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
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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.
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 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
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.
Brilliant.. All through high school I struggled without understanding potential drop... This guy guy clears everything in less than an hour. Thanks very much.
Glad I stopped by! Never has Ohms law been more clearly explained
i am trying to get into electronics. and your course has been very helpful as a pre-study resource.
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Great teacher!! That why I’m back after two years. To Refresh my memory
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What does god have to do with the current change in your life?
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Jason, MathAndScience.com
you're an angel. thank you.
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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!
I never leave comments but you are the most amazing teacher ever wow ! You truly have a gift thank you so much !!!!!
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.
Thank you for explaining it really clearly. Can you also talk about series and parallel ?
Sir i'm sow happy to fined your page and it give me hope that i keen study electrical for free. god bless you.
After years of listening trying to get it down it all makes sense now. Very impressive teaching
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.
What a great teacher ... it's much like me, a blind guy seeing the entire movie in my mind.
Where is Lesson 4 ?
Damn you are so great! if I had such a teacher during school or college, I would rather be an engineer at least!
It's clear that the man loves teaching! One of so many that believes in the idea of people being able to learn if you teach them well. Thank you!
Yes absolutely. I believe we are all capable of learning anything!
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)
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
The lesson is amazing, and intesting I really got something of it.Thank you my lecturer.
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.
Even a child can understand. Teachers with Phds and masters have little or no skills of representing lessons to students
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.
Very very interesting, I love the lectures so understanding and explanatory.
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'll be back , when I finished studying the spanish and German languages
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 .
شكراً لك يا استاذي, يعلم الله انك افضل من شرح جزئية الكهرباء ومكوناته. افدتني كثيراً !
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!
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
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.
14:55 absolutely great analogy that made everything make sense, wow what a great teacher
this is the best lecture I have ever received on ohm's law.
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
I never understood Ohm's law but in this lecture everything is clear as water
Not just water, but clean water
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.
Excellent teacher!….sir, you’re a bless to all of us, you explain everything so clear.
Thank you for this video aswell as the others I’ve been watching since episode 1
I'm training to be electrician these videos are brilliant to help learn the basic circuits and ohms law.
I really appreciate for imparting you valuable knowledge with all of us....you are really great....thank you so much
God Bless this Professor who actually took the time and explaining everything very well cause this is very helpful🙏🏻
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!
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.
Beginning a journey into guitar pedal building. This is a fantastic starting point, thank you!
Excellently explained the Ohm's Law.
Wonderful teaching method .
Thank you for making these videos, my teacher expects us to already know all this in introductory classes!