Ohm's Law explained

What is Ohm's Law and why is it important to those of us who fly RC planes, helicopters, multirotors and drones? This video explains the basics of electricity flowing through a circuit and lays the groundwork for an upcoming video in which I review the Turnigy Graphene batteries and examine why they may (or may not) be better than regular lithium polymer (lipo) packs.
Stay tuned!

[@TheAmaraHorton]

So this is what my husband does. He’s an electrician. I didn’t realize how much math he had to learn. So proud of my smartie! ❤️🤓

[@TheMagnay]

At least it's simple math, as a programmer i have come across math that makes my head spin.

[@TheAmaraHorton]

NiteOwl Programmers are some of the most brilliant minds I've come across. The people in your life are very blessed to have you to help them analyze their issues. 🙏🏾❤️

[@nikhilsharma4985]

Man a lady who is proud of her husband... I am a fighter pilot, yet my wife says I am useless 😂😂😂

[@Tympan]

Gosh! You are lovely person!

[@thatoneguy1205]

@@TheMagnay it's not just simple math, per say if you make electronics but it has a eprom chip in it and you want your micro controller to process all of the data in that eprom chip, sure you do math like resistors, capacitors, and crystal oscillators so that you don't fry your circuit and so that your circuit works, but it uses things like connecting the dot's, and oh boy does it get complicated, take a look at this video, and you will understand. kzbin.info/www/bejne/gp_dpoCAgb-Fmrc and i'm not being biased, programming is pretty difficult to learn, but once you learn it, it get's easy, same with making circuits, but if you learn how to make electronics you basically know how to make anything, you could even control other electronics, and understand how a computer works fully, but without the right program your circuit wouldn't know what to do. both programming and electrical engineering is very difficult. here's a 3d printer i'm making. easyeda.com/Cipher0/3d-printer

[@jeffnarum1373]

Assumes everyone knows nothing. Finally a video for me!

[@John-lf3xf]

he should use algebra

[@clydepiper4046]

With all respect to presenter - the top line, V, short for Volt - it's a unit of measurement for EMF or, Electromotive Force - just say'in

[@alberttorres4917]

@@clydepiper4046 I sure it's the same as electromagnamotiveInertial force.😁

[@pulesjet]

Some people Know Nothing and that's why they are here. Why are you here ?

[@atitudeshorts9910]

What a complement you have given

[@TommVenable]

This made learning Ohms Law so much easier for me. I’m learning electrical engineering through self-teaching and I was trying to just memorize the formulas before, but drawing it out the way you did simplified it so much for me! Thank you!

[@ericnetznik1543]

You not only nailed this down, Perfect Instructional material , but deserve to be THANKED & Complemented, for being a Superb Instructional Teacher of ELECTRICITY 101 ! Thank you,Sir, We need more unique individuals such as YOU!

[@livewire1414]

Please keep making these kinds of videos Bruce! You are a great teacher.

[@MrKurtay]

+OHMYQUADcopter I second that, thank you! :)

[@GreyhatInfiltrator]

This video has been very educational. As always, you've been a great teacher and so far, I have learned quite a lot... Thank you... Please, could you make more videos like this one?

[@MrBright88]

Agreed! I have been looking around for good explanations on basic electronic principles, and these ones are by far the best ones I've found. I would definitely like to see mote videos about different electrical components and how they work for example!

[@theclueless11212]

Yes please! I have had trouble with multiple different things, such as RF, and your videos are a great help!

[@alihazara7897]

Is very good ticher

[@lion39]

I always appreciate your ability to convey information in an easily digestible format. Big thank you Bruce! Cheers

[@charleskendall1063]

Thanks for doing this video. We just went over this is my auto electronics class and it kind of went over my head. The Triangle format in this video for some reason really made it easier to get.

[@MaikeTech]

There are so many ways to learn it, I teach electronics with cartoons! Overall Electronics is easy...

[@pickle_a_day_keeps_the_dr_away]

One of the most clear explanations of ohms law I've come across, my teacher at tech needs to watch this to learn how to explain it without it seeming like quantum physics. Great job mate 👍

[@BubblePi]

Damn, 46 yrs old and just learnt this. I like how this guy explains things!!

[@IvanRamirez-fs3sf]

Same here

[@Brandon_Moves_You]

I am an Aerospace Ground Equipment Technician for the Air Force, and this is part of our general training. I'd completely forgotten this over the course of my career, and this was a great refresher! Thanks very much!

[@chemistrygroup9431]

Brandon Harris

[@jadachai555]

I hope this man lives a long, healthy, comfortable life. A true saviour

[@BastianBlock]

2 traumatic years of electronic training school decades ago couldnt teach me the basic Ohm's Law. You just did it. I do not need it anymore but it gave me peace to finaly get it in my brain. Thank you.

[@Mannsy83]

i've been trying to get people to explain this to me in ages but with this video i totally get it. Subscribed.

[@loturzelrestaurant]

Ok but grammar?

[@daisyshine5735]

@@loturzelrestaurant don’t be that person

[@loturzelrestaurant]

@@daisyshine5735 Haha. Oh buddy.

[@loturzelrestaurant]

@@daisyshine5735 Buddy, youve got it in your mind wrong that this 'kind of person' is a negative thing. Youi just got this bias and its just not a true thing. Please work on that.

[@jayb.8460]

@@daisyshine5735 too late, he is that person.

[@chrisgreenman5350]

When I learned all this stuff we used E for voltage (Electromotive force). so E=I*R. Also is worth noting that the triangle works for wattage P. Using E in place of V you get the pie formula. P=I*E. Solving for the other values, I=E/P, and E=P/I. Another trick for those not algebra savvy, start with the basic formula E=I*R. the idea is to get the value you DON'T know to be by itself on one side of the =. You do that by dividing both sides of the equation by the value you KNOW. So if you know voltage and resistance but not currently you divide both sides by the resistance as follows. E/R=(I*R)/R NOTE: the ()'s are to show that you must multiply before you divide which is the natural order of precedence in math. This is allowed because you're doing the exact same (equal) operations on both sides of the =. Also note that any time you have a number (or variable) over itself (i.e. 2/2 or 5/5) it always equals 1. (think 2 halves make a whole). So to make it easier, the Rs on the right side cancel each other out. (I*1 is just I). To balance the equation again you have to do the same thing (divide by R) to the other side. E/R=I*R/R which equals E/R=I. Since bother sides are equal you can flip it back to front and you end up with I=E/R. This is how I learned it so it might be more confusing to some or it might help. Enjoy.

[@jacobwheatley7143]

This is exactly how Im learning it now

[@TheGryghst]

tldr = use transposition

[@johnthompson3111]

yeppers old school e = v in this video the v in the video slows me down. eV of course is electron volts. when working above light frequency the use of eV is easyier than frequency length. you all knew that,,,,bye

[@LAPDAWDV8911]

I wish you were my electronics teacher, when I was in the 9th grade. The formulas you explained was very easy to understand. Thanks

[@sianwraith1984]

I copy your gratefulness for this video!

[@traviswiley7322]

I was looking for an refresher on ohm's Law. Your demonstration, just blew my mind! I went through an entire semester, trying to understand Ohm's Law, and you were able to explain it in less than 5 minutes. Thank you very much! I will be following you.

[@DJSKULLCANDY3]

Voltage = E= electro motive force, amps= I = Intensity, ohms= R= resistance.

[@choiceblade]

EXCELLENT.

[@choiceblade]

Holy shit. Voltage IS "the Force"!!!!

[@taranahuq4050]

Isn't voltage= P.D potential difference

[@aarank1008]

Tarana Huq yes

[@subieflow1169]

Wow really smart people in the comments. Just started school; just learning this stuff

[@dennisr1683]

Wow - your talent for explaining is so refreshing and clear. Many thanks!

[@jonas2431]

I like the fact that you take the time to explain the electronics in depth. Others don't do that

[@bac3phi]

Wow, this is the easiest explanation video on KZbin. Thank you sir.

[@erikdravn]

I know all about Ohm's Law, I'm an audio engineer by trade. That being said, I always enjoy your videos Bruce. even if I am familiar with the subject matter, I generally always watch your videos. One can never have too many ways of explaining something. The more we are exposed to a concept, the more we become one with the abstract subject matter and the better we are at applying the knowledge we have. Because, even if we know a subject, if we don't know how (or often times when) to apply the subject, we do not truly know the subject.

[@IzakGt]

+erikdravn, This will be lovely two chapters away from current and resistance... 😭

[@lognum4155]

audio engineering isn't real engineering XD

[@Korgon2013]

Best explanation I've seen yet! Thank you, sir. Also - I love your pulsejet videos!

[@GaryParkin]

OMG! I've watched a dozen videos on Ohms law and I never got it until I saw your triangle. Thank you so much. You're an awesome teacher. I need this for my Arduino.

[@ikbaljafar]

Very well explained. I spent hours to understand ohms law by reading a textbook. But looking at video tutorial it took me just 11 min 47 sec. Thank you so much for your video

[@lllIlIlIIII]

Symbol. The conventional symbol for current is I, which originates from the French phrase intensité du courant, (current intensity). ... The I symbol was used by André-Marie Ampère, after whom the unit of electric current is named, in formulating Ampère's force law (1820).

[@EricMilewski]

In the credits: "A fly has been harmed in the making of this video." ;)

[@jimanders6666]

good one, dude

[@user-hg4fn8re3l]

2:14

[@roncoon3464]

OMG! OMG! OMG!

[@theredbread9584]

M Detlef I come from the future to tell you to go fuck yourself

[@EricMilewski]

@M Detlef F...U! ;P

[@vegemitegirl1971]

Thanks for the simple explanation. My husband is dyslexic and asked me to watch this video and explain it to him. He's currently doing some training for work in this area. I understood it first time through, taking notes as I watched.

[@thydevdom]

Finally a teacher explains it in its. Most simple form! Thank you, Sir!

[@ninjabothandyman6063]

Thanks so very much Bruce, for your time teaching the fundamental ohms law kind sir!! Great job !! Thanks for sharing this video !! I'd love to hear the rest of the fundamental components of electronics: insulators, resistors, and also a s much more information about magnetism and it's properties. Electro-gravitics is a subject of immense value and interest to me sir !!

[@russellbrooks3243]

your too funny "theres a fly i here, im gonna kill the bloody thing, hold on" MY MAN lol

[@kilgallon_savs4803]

This video help me alot, I'm currently training as a electrical engineer with no background or knowledge. My boss told me to research Omhs law as it's the first thing to learn. This video really did make it easy to learn. Thank you 👍🏻

[@sweetdragon36067]

Thanks for making a very easy to follow video for all the readers of topics for dummies books.

[@thrilleex]

You assumed I know nothing, you assumed right. I appreciate your videos a lot, thanks Bruce.

[@ethanarquette3924]

Wow, you are such an amazing teacher! You made this so incredibly easy to understand and you did it so quickly! Where can I become a patreon?

[@susieclay7665]

Thank you for explaining ohms law with numbers in the triangle. This is a great tutorial.

[@vlow714]

I'm 4 months away from graduating with a bachelors in Electronics Engineering. I approve this video. Thanks!

[@user-sc6zt8lu5]

This really helped me understand something I never understood. Thanks for your help👍

[@samesparza2149]

Thank you so much. This actually helped me get a really good job I applied to. This exact concept was on part of the testing.

[@MrKermitro]

Thank you Bruce. Could not but notice the vintage and myself at 75 knew I would understand you somewhat. I had forgotten the formulas of the triangle and you brought it all back quickly and simply. Thank you again

[@bennybenitez2461]

Brilliant great presentation this from an former Grumman F-14 Tomcat avionics technician.

[@anthonyborg1759]

Thank you so much i am saved from failing my science test!!!

[@S700KYFPV]

Thanks so much Bruce. Love these videos. Your so clever and so kind sharing your knowledge 😃

[@jaimieconroy36]

Thank you for the refresher course in basic electronics. It's been 30 years since I first learned ohms law. Since I never put it to practice I have forgotten much of what I learned.

[@sergiyrr5153]

incredible quality, not just a croaky voice and three pixels, great presentation, love it

[@samisalhab2569]

thx soo much I did well on my physics exam on circuits because of this video

[@luuukaain4133]

u r welcome jon bye

[@DonDegidio]

Bruce, I liked the demonstration of emitting the "blue smoke" from the resistor. :-)

[@thekaduu]

+Donald D'Egidio blue smoke is only contained in the IC!

[@marinnifirinni8876]

Building a site is not an easy task unless you are armed with the best multipurpose WordPress theme that can be adjusted to any possible online resource. Law e-web.top

[@darylcheshire1618]

You can't put it back

[@georgejungle7521]

I learned all this 40 years ago in the air force. Basically it was explained the same way. Good job as a refresher or teaching someone new.

[@swagman9203]

Back in the early eighties I was given the two triangles W over A x V and V over A x R. The phrases we were taught were 'What Are Virgins' and 'Virgins Are Rare', so easy to remember. Now trying to relate it to P and I had me foxed for a while and watching this made it some much clearer. Thanks.

[@Chook55]

The derivation of "P=I²R" is because (1) P=VI and (2)V=IR, so substituting for V in equation (1) we get P=IRI or IIR = I²R. I find the derivations of formula informative.

[@bradwilliams7145]

Thank you for using V for volts and W for watts. Me being common folk, buy my light bulbs based on (W)atts, not P(ower) and my appliances based on (V)olts not E(lectomotive force). Now let's just change the I(ntensité de courant) to (A)mps and it would be a perfect world. 😜 Thanks for the memory reboot!

[@sixstringsounds]

Understanding gives facts value. thanks for sharing your understanding; my world just got a little bigger and I a little richer because of the colors that you donated. You are a kind and generous person. Thanks

[@boblloyd8199]

Excellent I am 71 and figure it is time to understand this. Thanks

[@nyshealong628]

Using your video to study for my Asvab . You're very useful and have a wonderful way of explaining things !

[@RobB_VK6ES]

For those that have trouble with triangles I have a solution to remembering Ohm's Law. V=IRgin :)

[@garylowe8601]

Are you making an admission? lol

[@glassofmilk7141]

lmao

[@pacman8551]

anything that can happen will happen

[@TheJestar30]

🤣

[@patrickcockerham9308]

thats murpheys law

[@garybulger4686]

Hello, beginner electronics student here, thank you for the very informative video!

[@J.fromMichigan]

This is basic science that needs to be shown. Good stuff.

[@FatalBlow113]

Why does EVERYONE explain Ohms law so damn complicated? Thanks for giving me the dummy version, I actually understand it now... damn!

[@jjsmallpiece9234]

Maybe you are dumb

[@rogersingh9890]

Nicely explained

[@ajmccabe4615]

JJ Smallpiece humans are pretty unintelligent anyway and the weird thing is that the more we know the more stupid we become. If we knew even 1% of what information is in the universe we would still be pretty ignorant. So if you think your smart you are actually less intelligent then someone who things they are dumb.

[@xukzALEXx]

Exactly

[@MichaelClark-uw7ex]

OK here you go: Amps=watts divided by volts. the commutative law of math says you can arrange that equation any way you want ie watts =volts*amps, volts=watts divided by amps.

[@AveryCaudill]

very cool and simple

[@jadejimmy7646]

I have an exam tomorrow and it's on ohms lay and electricity along with circuits and this really helped me understand thanks man

[@djh93543]

I finally understand this. Studied it 30 years ago and didn’t get it till now. Thanks

[@gge0rgi0u]

Another educational video. Can you do a video about wire awg and current capacity for rc usage?

[@ryanjames9740]

You are awesome at teaching and ya made me laugh with your comment, "I don't give a damn about current." 😂😂😂 Keep up the good work sir! Thanks again

[@ainnsoal6832]

THANKYOU BRUCE I am currently studying circuits and know nothing of ohms law. Thankyou for taking your time explaining this for me .

[@nellmaddenaudio]

Thank you! Currently learning about Ohms Law in relation to speakers and amplifiers and how to match them without blowing either. This was a great video to start me off, and you were able to explain everything in a way that I was able to understand quite quickly.

[@Etiker5]

You explained this in a way it's simple to understand for a noob like me. Thanks

[@fdylanyall]

I like your whiteboard videos a lot, Bruce. I'm really looking forward to your series on HAM radio. Cheers

[@primberrysoup8770]

I've just started a sparky course online and this..... was soooo much more helpful than the course work provided thank you sir

[@k1ortia]

To be honest it does look complicated, but once it's broken down and you start to digest everything, it makes sense. Thank you.

[@nickbeirl5016]

"I" means intensity which makes sense for current if you look at it from a flow of water standpoint. M

[@mrpanda2655]

Box Addict no it’s not shut up

[@bobgarr6246]

Actually what current is measuring is the amount of electrons flowing thru a conductor in Coulombs and being pushed by an Electro Motive Force, EMF, and measured as Voltage "E' , which both are struggling to overcome as Resistance "R", which is the conductor/wire they are flowing thru.

[@bobgarr6246]

@Box Addict one is a good analogy of the other. But they are in no way shape or form " All the same" . The formula for quantifying one can not be carried over to the other.

[@loturzelrestaurant]

@@bobgarr6246 Hi and Hello. I gather people for a good cause: I wanna provide people with Links leading to bad or toxic people. Mobber, Racists, Sexists, Bullies, more. I got the Links and i need help with reporting them. KZbin is in a bad state and i think you heard of that. Many complain about it, its strike-system and its CEO: Susan. But... I mean... complaining about the State of the world is nice and dandy, but... how about acting? Doing something? So i made a Wiki where i store Links for all to use. Yeah, unorthodox, i know, but whatever. Its my Try to help. You can at least pre-emptive 'block user' regarding the Racists and all those, but you can also do one thing more and report them. I know this was random and also overly summarized, but think about it and consider. You can make a difference. I tried to explain it as good as possible, but the Wiki will tell and show you more, i guess. What do you think about all this? I mean, its a good cause, improving the internet and the world, and it costs no money, just time. Nice or not?

[@anouarmejri2673]

"I" stands for intensity.

[@rodelorazon7684]

What?

[@luispineda0218]

hi i just wanted to thank you for the education . im currently on a (OJL) in Lincoln Tech Institute , im picky learner so i like seeing formulas/equations and explanations in multiple ways . this helped cleared a few questions . THANK YOU.

[@LA_BLAZE]

This great person explained to me in 10 mins what my teacher couldn't in like 4 hours

[@JM-ml3ch]

Still haven't found anyone attempt to explain why the formula works

[@davidlixenberg5999]

Yours is the first intelligent remark. I think Ohm's discovery is telling us about a relationship between mechanical work done driving a population of electrons through a conductor and energy used up against friction, meaning that it is converted into heat energy. Voltage is also known as 'potential difference' or just 'potential' and is a unit of energy. Ohm' discovery and formula doesn't always take such a simple form as is discussed in this video. There are resistances described as dynamic with a non-linear connection between voltage and current. In more advanced work Ohm's Law is superceded by Kirchoff's Laws and Ohm's Law becomes the Expanded Ohm's Law. David Lixenberg

[@jas4768]

JESSE. WE HAVE TO COOK

[@R3LO4DED9786]

Jaspreet Bindra eyyyyy 😂😂👏👏👏

[@mztech1925]

spot on

[@t8thegreat.578]

Hahaha I was thinking the same exact thing

[@gerardopuga13]

Walter white 😂😂

[@XXROCCOXX8]

bind 😂😂😂

[@pawelskorupski9018]

Sir... "I bow in front of You"... You present something so obvious, in my profession, in the way that was still so interesting. If You're not a teacher ,think about it...You're gifted.. Amazing!

[@Neilz483]

wish I had this guy as my teacher back in my highschool days. would have learned a lot more. Preparing to take my TKT II aka Dtsat test so looking to obtain all I can. Your teaching style fits the way my mind retains intel it receives.

[@rooster3019]

"I" represents amps because of the damned French! "intensité du courant".

[@rabbycacker]

Aahhhhh, now I get it. Was wondering, where the hell did "I" come fom?

[@goku445]

Bien entendu.

[@crossfarm4146]

I is for Inductance brah

[@crossfarm4146]

I is for Inductance brah

[@ylin3160]

Isabel Lumbreras I mean it’s not like that’s what he said or anything 🙄

[@eval_is_evil]

pacman t shirt? just for that it is a thumbs up

[@cesarcalderon4358]

I want one.

[@backspin6698]

You are a good teacher. Now, I just need to watch this video 10 times to overcome my brain "resistans".

[@thebrojoe5331]

Just subscribed currently studying to a electrical engineer got a whole year to learn and get this apprenticeship approval underway look forward to learning more thankyou for sharing the knowledge

[@olivialambert4124]

2:21 - The resistance aaaargh. This is pirate electronics 101.

[@R3LO4DED9786]

Olivia Lambert fine arse bitch

[@SamirSamir-pq3vj]

gi

[@SamirSamir-pq3vj]

Olivia Lambert hiii

[@NjvsValhalla]

hahahahahah

[@StrawberryTasha]

giggle

[@davidarchino8504]

"I dont give a damn about the current." Me and you man, me and you both

[@astrokid7664]

I like this guy, great instructor. He's not a cocky know it all. RC you're a good man keep on making these videos my friend. I'm an electrical engineering student and you're like a coach outside the classroom for me. :)

[@MrLibbyloulou]

Thanks very much...the easiest vid to follow ever..always got confused but you made it so simple...made my life easier.....

[@michealjordan8008]

I think the battery sign is wrong, isn't it that the negative is the short line and the positive is the longer line?

[@wolfgangsnitsar4739]

We always learned that Voltage is E in ohms law for Electromotive Force... never saw it as V.

[@kakuluchristopherclaudius1296]

Doing Electronics at an institute currently and this is part of my subjects, (Engineering science)I like this so much.

[@choiceblade]

Great teaching! Massive electronical reminder for me personally. Two things. First, I was LITERALLY laying in wait to kill a fly when you took your pesticidal break. GREAT minds think alike, clearly. Second, right along with each variant example would have been welcome a practical life example illustrating why I would WANT the cofactors in that particular configuration or another. It all cuts to my motivation as a listener. My reason to want to know these things...if that makes any sense. I found myself hairing of into an imaginative flight of fancy where you are the prescient doomsday prepper dropping critical tidbits of live or die survival info to a currently, relatively lackadaisical public at large. I have a good imagination, I know. Either way the price was right, and I'm grateful as always to find amazin' content on KZbin. Many Thanks!

[@joepacheco4038]

When I was working ohms law was 330 I go ohm any one working with electricity should learn this

[@joshuaeilers8079]

I stands for "Impetus" which was what electrical current was called before Andre-Marie Amperes research granted it the name "Ampere"

[@rlewis1946]

Joshua Eilers Thank you, Joshua. I was about to Google that. I enjoy knowing historical aspects of Science.

[@themonkeydrunken]

Actually... it's I because of the French. It stands for intensité (de courant). Not impetus.

[@allenjenkins7947]

There's a story about a physics student who was about to sit an exam in basic circuit theory. so he asked a friend is there was an easy way to remember the electrical power formula - "Easy" said the friend" Twinkle, twinkle little star, power equals I squared R" His friend saw him after the exam and said "How did you go?" "No good", he said, "I failed miserably, I got all the questions on power wrong!" "How come, didn't you remember the little ditty I told you?" "I thought I had, but it came out as 'Little star up in the sky, Power equals R squared I'".

[@StephenGiovi]

This is the best tutorial on Ohm's law that I have seen. Thanks!

[@peterpalffy9302]

"I" stands for intensity, actually 'intensite' in french, as per Andre Marie Ampere....

[@keytardan1]

Peter Palffy Thank you.

[@wakelash1024]

Ham radio series???? When?Where?.............Please................

[@eseantonio7856]

You explained this way better than my teachers did ! Thank you

[@TerminalEntity]

Very practical teaching style. Like the extra analogies to draw back similarities in other fields of life to help understand. Have just started my electrotech apprenticeship in Australia and have a teacher from Mumbai and im, not a racist, just saying the learning curve is big enough without the accent barrier to go along with it. Please do keep making videos :)

[@RomansRule1234]

can you give a lesson on newton's law as well?

[@jack002tuber]

E = IR and P = IE is what I was taught in school.

[@shivashtisingh739]

voltage means electromotive force (E) henceforth E also means V

[@rowanniven4574]

I found this so helpful for my physics test because I didn’t understand ohms law! Thanks so much Bruce!

[@SAMANTHALIZELWILNAAnthonie]

you nailed it wish all teachers can present like this this ultimate perfection teaching