Basics of Ohm's Law, Volts, Amps, Ohms, and Watts Explained
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- เผยแพร่เมื่อ 31 พ.ค. 2024
- Basics of Ohm's Law, Volts, Amps, Ohms, and Watts Explained. In this video I go over what the Ohm's Law formula is and how to use it. I also explain what volts, current, watts, and resistance is and how it works, along with a water analogy to help understand it better. There are a few examples of the math and how to use the Ohm's Law formula. I finish it off with some fun facts and the M&Ms are at the end :)
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Took electrical class last semester and what you taught me in 10 minutes took me a whole semester to learn! You have a gift in teaching thank you so much God bless
Thank you! Just changed my world
I retired from a nuclear power plant in NY. As most people know a Nuke Plant produces electricity. The output of the plant I worked is 1,000 Mega Watts (1,000 million watts). A clean up crew was picking up debris around the site. They were after wind blown garbage and tree limbs. One fellow saw a tree branch on one of the plant's outgoing cables. For some reason only known to him he climbed the fence and ignored the KEEP OUT signs to grab the branch. When he touched the branch he was electrocuted. He was only 35 years old. He died. Because of the change in the plant configuration (the outgoing cable was now grounded) the plant tripped off line (shut down). An electrical component below the room I was in exploded. Even though wood is an insulator the man died because the extremely large amount of electricity traveled through the tree branch moisture. Before acting in a unusual situation, think twice before acting.
I'm just gonna be grateful that they had names like Ohm, Volta, Ampère or Watt because Wolfeschlegelsteinhausenbergerdorff would've been one heck of a unit. Great video, really appreciate the teaching style!
Now I am worried because I understood that! Thank you so much. I have really struggled with this.
Thank you! I’m an HVAC contractor (still running my own business with my husband) that recently and reluctantly (frankly because teaching scares me) turned part-time HVAC instructor at a local trade school. My students ask me things, theory-wise, I can’t remember anymore. Thank you for your very helpful content! This isn’t your first video I’ve shared with them. If you aren’t already an instructor, YOU SHOULD BE! Many thanks from Tulsa, OK!
Thank you for revisiting the material to serve your students properly. Most professors are not that diligent.
Anyone know ohms law I learned it years ago. ohms law states current flowing in a circuit is proportional to ??? Can't remember it
Thanks you keep an ole man listening
Best explainable video I have seen.
Man this video just cleared so much stuff up for me! Your gift of teaching is a real blessing to others! Keep doing what you do best man!
My teacher I have now often acts like he doesn’t even know what he’s talking about so this was a real eye opener as to what a real teacher should be like.
Same😂
Thank you bro! You definitely would make a very good teacher in tech schools.
You are the goat !!!! You explained this very well
Man I want to say thank you for the clear explanation about ohms law, this video is really helpful to me, on 05 06 2022 I'll take my journeyman Electrician license.
Wich is next Friday from now. I'm excited but at the same time nervous
You are the best teacher on TH-cam
Thanks thanks again for your help so are a blessed guy and you have a lot patient to explain to your views thanks again you are the best mechanic and you are a technician god blessed and keep us teaching
better than my teacher at school ty
Awesome explanation thanks J, I always watch your videos but but unfortunately I haven't seen new ones lately.
Your explanation is simple and straightforward ! You are a great instructor
Thank you Philip!
I'm older, but a great Refresher!
Thanks Again Man! 👍🏽
I like to remember power as P=I*E good old American pie! Great review :)
Haha that's a good way to remember it :) Thank you for watching and commenting!
Thanks for the review it was very good my brain needed an update
Bar far the best explanation on TH-cam
Very very good teacher
Your info is like a treasure
Thank you! I appreciate the kind words
Thank you very much, it was a very helpful and easy teching method
Great job explaining this - starting out again to learn to use a meter but now retired and have the time. This really helped get me started. Appreciated!
Excellent teaching style - thank you! Really helped clarify the many confusing explanations I've heard in the past.
very nice explanations
Excellent job on explaining that buddy keep up the good work very helpful as always 👍👍
Thank you! I appreciate you watching and commenting!
Awesome explaination
Thank you for the detailed explanations!
Dang. Now I want some M&Ms.
This was awesome. I love your teaching skills.
Nice and straight forward 👍 keep it upp
Great video
AWESOME EXPLANATION...WELL DONE.
Thank alot many tech or maintenance don't have a clue about this.
No problem! Thanks for watching!
Great presentation Jay. Thank you for all of your informative videos.
Thank you! Glad you enjoy the videos!
ty. right to the point. no straying. ty
Omg Thank you so much for this video very detailed and I have a test tomorrow and this video is the perfect video to help me understand ohlms law
thanks for all the videos man so helpful
Excellent I like the way you explain, keep going with more videos.
I started school 2 weeks ago and already know all that formulas !! But i like you examples comparing water current with electrical current i understand better now. thanks!!😄
Good to hear that the video helped you understand it better. Thank you for watching!
Great Explanation of OHMs Law.. Thank you!
Glad you liked the video! Thank you for watching and leaving a comment!
Thanks Jay for the like notification you are awesome fellow who knows his stuff.. it's raining here and I'm loosing service on my phone and I'm trying to finish the video I learnt a lot in the first couple minutes than I have all week. Lol.. have a good one buddy.
It's great to hear that! :) Thank you for watching my video even with the bad service connection. Good to know that the video has been informative. Hope you have a great rest of the week Mr. McKinney!!
@@WordofAdviceTV you have a good rest of the week to my friend may God bless you and your family and keep you safe.. I got to finish the rest of the video I like the part of the m&m s..
Good refresher. Thanks Jay!
Thank you Mr. Russell! I appreciate you watching and commenting!
Hey man really thank you ,
like your videos refreshing my mind.
👍🏼
Well done. I learned a lot.
Crystal clear
Great instructions
LIKE
Thank you! :)
Thanks you made it so simple
Excellent lecture
A very incredible video I learn so much from you.
Thank you David! Glad you found the video useful!
Good job 👍
Glad you cleared this up for me, i was all back the front, thanks heaps
Happy I could help! Thanks for watching!
Thank you 🙏🏼
Great info!
Since ohms are the measure of resistance, you would want to buy something with fewer ohms. For example, if you were comparing two motors, and one had an ohm measure of 1.5 and another had an ohm measure of 2.5, you would choose the one with the 1.5-ohm measure because it has less resistance.
But you also need to consider the purpose of the device
😅😅😅😅
Very Clear!
Thank you 😊
The right question is. Bring different appliances from amazone that use 110v and answer what kind of charger is need to run it in 220v. This is a good practical example. Please do it ASAP
Great teaching thank you so much for sharing this is the first time I watched your videos and I like it so much learning more to getting a contractor license 👍
Thank you.
You're the man Hercules! :)
Great explanation Jay ... And I stayed awake the whole time ... Lol ...
Hahaha glad to hear I didn't put you to sleep Eddy! Thank you for watching!
Super channel Your wife is a great camera person. I watch every new vid u come out with. Plus I have watched a bunch of old ones too
Thank you! I appreciate you watching so many of my videos! And oh yes.. I am confident my videos would have been much worse without my wife's help.
Good Job Jay
Thanks
Thank you for commenting and watching Mr. Lennon!
Excelente!!!!!
Thanks a lot for all the informative videos
Do you have one for zoning snd how to setup the zoning box
Bro you are amazing nice one
Thanks this has helped me a lot cause class is moving like a freight train full throttle thanks a million times you made it so i can understand it do you have any videos on parallel circuits
Great video. Thank you for sharing ^_^.
And thank you for watching and commenting! :)
Someone said, " go the extra mile its never crowded" excellent class.
Thank you! :)
There are no traffic jams along the extra mile. - Roger Staubach
Lol it’s in The background
When he says I realize it's probly confusing but you just realized the resistance is the object receiving power not like a ground wire or any wiring at all. Lmao voltage is electrons moving and current is how much is moving through like a river 4:45. Me: "Ohhhhhhh!" Him: "I know it just got confusing..." lol nope it didn't. Thanks!
nice!
You said it was 6.24 times 10 to the 18th power but then the number you wrote down only had 16 zeros. I thought , to the 18th power ment a number with 18 zeros after it.
Great video! I always thought "air" was a conductor (and not an insulator) since you can see the arc when you get shocked after touching something metal around the house after walking on carpet etc lol. Anyways, I love the way you end your videos... absolutely good stuff! Keep up the great work Jay!
let's see how I say it, ohm's law already says the word law is not specific for direct current voltage only, but it is a general law for circuit calculation regardless of the type of voltage used. Ohm's law talks about current and says the following: the current flowing through a conductor (understand elements of a circuit) is directly proportional to the voltage applied between its terminals and inversely proportional to the total resistance of said circuit, therefore its true formula is I = E / Z, what happens is that in DC voltage the imaginary part of the impedance (Z) becomes zero and only the real part R remains
a ver como lo digo, la ley de ohm ya lo dice la palabra ley no es especifica para voltaje de corriente directa solamente, sino que es una ley general para el calculo de circuitos independientemente del tipo de voltaje que se use. la ley de ohm habla sobre corriente y dice lo siguiente: la corriente que circula por un conductor ( entiendase elementos de un circuito) es directamente proporcional al voltaje aplicado entre sus bornes e inversamente proporcional a la resistencia total de dicho circuito por tanto su verdadera formula es I= E/Z, lo que sucede es lo siguiente que en voltaje de DC la parte imaginaria de la impedancia (Z) se hace cero y solo queda la parte real R.
para el que no entienda ingles aqui les dejo el comentario en español. saludos
I read about ohms law in a book but didn’t really understand it, but your video made so much sense. Thank you, and keep up the good work!
Happy to hear that the video cleared it up for you! Thank you for watching and leaving a comment :)
Subscribed...
What does the "E" stands for?
Very Good Video -
This a video worth watching over and over - thank's for sharing this .
Thank you Pete! I appreciate the high marks and glad to hear you liked the video!
That edible paper .... lol
Do I sense Series and Parallel on the next video? Thanks for sharing!
Lol, maybe later on :) Thank you for watching and commenting!
some who has formal math courses such as aljebra. it is rather annoying circle V, I, R ----- no need. If you have one formula e.g. V = IR ---- you can find R, which is R = V/I
how did you make the paper rise up? what did you add to the water?
It's actually just plain room temperature water. Try it 😉
Hi jay i watched all your videos n help me a lot. I've allready got my EPA certificate last year but i have not started worki g in this field yet n i am scared cause english is my second language so if u can give me some advise pls... Thank u
How would you use ohms law at work? The math sounds simple enough, but I am struggling to understand its practical application.
It comes in handy to figure out if there is too much power being drawn on the wiring or above what a system is rated for. It's more useful for general contracting purposes. Each gauge of wire can handle X amount of amperage, if someone doesn't know what they are doing, they might DIY something and not realize the wiring can't handle the load, or that there is too much resistance for a unit to function properly. And sometimes when doing stuff on the fly without all your tools available, a sticker might tell you a couple of things you want to now (volts and amps), and you can figure out the watts on the fly to calculate how much the unit will cost someone on a day to day basis
Could the light bulb be considered the resistance /ohms in a simple circuit ? (battery to bulb to battery) the Watts that it uses is considered the resistance? and we could measured that in ohms correct? WE could change the wattage value to an OHM value .. example: "I have a 100 watt bulb in the lamp" or could I say "I have a 23,000 ohm bulb in the lamp" ? .............or am I totally off base
I’m confused about how you know what resistance is without blowing out the circuit. If current is running through something and you don’t yet know the resistance and if it’s too low while I’m measuring it wouldn’t it blow up and kill me? How do you prevent being killed by electricity?
You can troubleshoot a system with power on or off depending on what you're looking for. If you're not confident in taking measurements when power is on, disconnect power and switch your meter to resistance (omega symbol) not continuity (beep). Reason for that is not all meters can measure high resistance when set on continuity and it may tell you the component is bad when it really isn't. Fear of getting electrocuted is a good thing. It makes you slow down and think before you touch something. Lock out/tag out whenever possibly and never take someone's word that power is off. Always verify with your meter using the probes or NCV setting or carry a small Non-Contact Voltage (NCV) tester.
Identify your loads in the circuit, components that consume power, and disconnect them from the circuit before checking its resistance. Each load will measure a certain amount of resistance and there's usually a label on it that tells you what voltage it's rated for and what its Full Load Amp (FLA) draw is. Divide the resistance into the voltage to see if it is drawing more current than it is rated for. Continue the process with all the other loads. If none of the loads exceed the FLA rating then the problem lies in the circuit wiring where a hot wire is touching a neutral wire, loose connection, bad contacts and a miriad of other things to check. You'll know if the load is bad if you get a lower than normal resistance reading, your meter reads "OL" (open line) or you get a resistance reading from any load wire to the load casing (unpainted spot on the load).
If you're still not sure after reading this then I suggest you take a basic HVAC coures that will cover everything I just mentioned and go into more detail on types of motors (compressors, PSC, shaded pole, ECM, induction, CSCR, CSIR, single phase and 3-phase power). Resistance readings for 3-phase motors are different from single phase motors and if you don't pay attention to how a 3-phase motor is wired you could potentially break the quipment by reversing the motor direction. Three-phase motors can also be wired up in the delta, wye and delta-wye configuration depending on current draw on start up. This youtube video touches on only a very tiny portion of the electrical you'll need to understand. The hands on portion you learn in school is, in my opinion, the best way to learn. The instructor will take you through it step by step and you'll be able to read schematics and determine if a component is wired in series, parallel or series parallel. Hope I didn't discourage you but peaked your interests in learning more.
Respectfully,
🙏🏽
No watt created the unit horsepower for power. The unit watt was proposed by Charles William Siemens (brother if the more famous Siemens).
Nobody names units for himself.
Using this formula to build my doomsday device! You are now complicit in my evil plans😈
Yindo.from chicago.
You said “e” stood for “electromagnetic force”, but it actually stands for “electroMOTIVE” force
👍👍👍
Harry's present! You're a good man :)
Thanks man for a nice video you inspired me also to make more video I'm a new TH-camr shout out
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Turn down for Watt
🎶🎵🎶🎵🎶
😍📚📝👀👀
AC resistance is different than dc resistance. Which is reactance.
Yes, thank you for pointing that out! Much appreciated!
DC can have reactance -its a short circuit= zero. Commonly Impedance is used as the term in AC resistance. Resistance is always associated with DC circuits so to distinguish DC resistance from AC resistance the term Reactance is generally used as you stated.
a c resistance you can see it as a sign wave on a ocilliscope, go to automotive dept the measure that all the time.
Awesome lesson for someone starting out in electricity...
At my first job as a teen, there was
an electrician who tried to teach me some electronics. He was showing me colors of wire as they pertain to
ohms. I wasn’t very interested. The
only one I can remember right now,
is orange, which I think is 7. Am I right?
Thank you! So you were an electrician in the making at one point! There's still much to be discovered about you Mr. Classic :) I am not sure about the electrician field but in HVAC, the color of wires do not represent any ohm rating/resistance. Or maybe I just don't know about this... Hmm.. Maybe a technician who's experience rivals my age will be able to have a concrete answer for us.
thats what apps are for now (passt: manuals, slide rulers, protractors, etc). Any thing that can be looked up by a tool i.e. resistor color codes-really shouldn't be memorized. www.allaboutcircuits.com/tools/resistor-color-code-calculator/. Answer 7 is violet orange is 3- I looked it up! The best teacher is doing not memorizing.
if your really instereted in HVAC career go to a vocational school, they'll teach you everything from A to Z good luck.
Word of Advice TV, I wonder what he
was talking about then. The numbers were from 1 to maybe 12 or more, I was to memorize the color
to the number. ????
Pro Answers, OK, thank you. As a teen, I wasn’t very interested, and
didn’t get far with his electronics
lessons.