Thanks man. I am just starting level 2 at 46 years old (brain not quite as sharp as it once was). Your teaching made it very easy to learn this bit. Thank you.
You explained it in some ways I've never heard of or thought of, like the part at the end where you explained that the 2 equations with a denominator, are the 2 that explain the inverse relationship between current and resistance.
Working as a mechanic and my current job just made me take a basic omhs class, which I knew but was nice. What wasn't cool was taking the course on what electricity was ie the atomic break down.
@@atmacm We should ask what is the constant. Can we change the voltage, yes. Can we change the amperage by changing the voltage, yes. The only constant is the resistance. R=E/I. If R never changes, then E and I are directly proportional. If E and I are directly proportional and P=EI, then P is directly proportional to E also in this scenario.
Excellent point Jason. I used to get confused with voltage and current being inverse of each other where power was concerned and being proportional of each other in the example Dustin showed.
I always found your videos to be really innovative and really impactive educationally cause I'm a student who's based on the electrical field and your videos has really been a stepping stop for me ❤❤
4:15 probably a slip of the tongue but "as voltage increases amperage will always be " LESS not more Great video and I really appreciate what you do for our industry...!! 🤘⚡🤓 Edit: every electrician should know ohms law by heart. Can't effectively troubleshoot without a solid grasp of theory...💯
If you have double the voltage acting upon the same resistance it will double the amount of current flowing. You are probably thinking of the power equation which means if you have a given wattage and double your voltage your current would be half.
@@tomgrummett4591 So you're actually saying that as voltage doubles current ALSO doubles...?? Johnson - Nyquist also disagrees. The only exception to ohms law are non-ohmic elements like diodes and batteries but you didn't mention either... Ohms law is the reason for instance why we drive lighting circuits at 277v or motors at 480v instead of 120v. Because the current is decreased which has many other benefits...
In transmission lines they jack up the voltage and that lowers the amperage. They do that for safety. In that case voltage and amperage are inversely related. When you transmit it to a building from the transmission lines the voltage is transformed (transformer)to the voltage needed. Feel free to correct or add anything to my understanding.
I have to say it has been amazing being able to utilize my dad, as a Naval Electrician and retired, and your channel to bridge the gap across all things as a new homeowner in my electrical system. As a low voltage guy myself, I feel more confident in troubleshooting and making good decisions. Thank you for the years and hours of video you have given to others like myself.
I noticed in many ways current behaves the same as water. Voltage is analogous to pressure and Current is analogous to volume. Two pressure tanks set at different pressures connected together behave the same way as two batteries of different voltages wired in parallel. A pool full of water won't hurt you if you stick your hand in it but apply that same water through a jet at 80K PSI and it will amputate limbs. All of the current in the world is harmless without enough potential (voltage) to drive it; although this is rarely the case it just highlights my point. When I started learning this "water logic" gave me a clue.
Remember why high tension lines run at 11k volts...they can then run at low amps. Low amps mean you only have to use thin cable. Can you imagine if high tension lines ran big amps? They'd be so heavy they'd never hold up. And they'd become radiators. So we are lucky big volts mean small amps.
Great video. Would love to take some of your courses on the website. Just a little expensive my man! I get it, but for an apprentice, it’s tough to justify those prices. I appreciate what you’re doing though!
Love your videos man. I'm currently in school learning from master's in the trade, and watching these videos at night after classes to get closer to mastery myself. Thank you for all the knowledge and tips! Could you possibly cover three phase motors for commercial application and industrial application? We get into that in about a month and I wanna know more before hand to have a better chance in the classes. Thanks if possible, and be safe out there!
This would have been the perfect opportunity to point out that the math shown in this video assumes an infinite power supply. However, doing the mathematics using a fixed power supply, the opposite is true and voltage is inversely proportional to current. This is the reason transmission lines use such high voltage as raising the voltage, reduces the current, and allows for the use of smaller gauge conductors.
Good vid man. What gets me is if higher voltage higher amperage according to the ohms law formulas. But motors other equipment etc. Operate at lower current draws with higher voltage.
I’ve been confused about this too. I think volts/ amps are only directly proportional at the same resistance, and equipment meant for higher voltages physically has higher resistance. I’d like to hear Dustin’s take on it though.
You're confusing 2 separate equations. When you're looking at a motor, you're seeing the power required to make it run. Possibly something like 5,000 watts. Power is W=IxE. So a 5,000 watt motor at 120 volts is 5,000/120 = 41.66 amps. That same motor at 240 volts is 5,000/240 = 20.83 amps.
I'm still on the fence about whether or not i like it to be honest. The software side of it is really archaic. Overall I don't recommend it very highly but it does act as a touch screen desktop monitor as well - there's just issues with latency when drawing on it as a monitor rather than using the BenQ Android side of it as a drawing tablet. Its a BenQ brand tv though if you want to check it out.
"i use unbreakable oversize plates because it covers up how shitty of an electrician i am , but doesn't stop me from calling my self "Electrician U" i am not stuck with those shitty looking oversized plates that look like shit, flexing, the customer is, after I am gone"
Sort of related seen some videos like related but there was/is a saying it's not the volts that kill its the amps. But voltage increses resistance decreses amperage increses was how I was explained that idea.
Hey Electrican U man, totally different subject have you done any electric vehicle power hook ups yet. Stand by power support for EV at residential homes because this is what's coming in near future like tomorrow. New installation what will the breaker ratings 60A, 40A, 30A etc...?
There is no "relationship" between voltage and resistance. If you have a simple series circuit... changing voltage from 120V to 240V isn't going to change the circuit resistance at all! It'll surely increase the amps flowing through the ckt, but will not change the ckt resistance by even 1 ohm!
Because they use letters to define what they are. What is voltage? Electromotive force, therefore "E". What is amperage? Intensity of current, therefore "I".
@@surferdude642 just to clarify EMF does NOT equal Voltage and Intensity of Current does NOT equal Amperes. They are different things. Volts is the unit of measure for EMF (E) and Amperes is likewise for Intensity of Current (I).
It's not called a "Wheel"... it's called "Ohm's Pie" (circle around E over I * R)... at least that's what the Navy taught us in the advanced electronics courses I attended!!! :-)
This guy makes entertaining videos. Don't get me wrong. But he is an academic gate keeper. He will never unleash the secrets to free energy unto us the masses.
Nah, we’re not gatekeepers. We’re just working with what we’ve got. I’ve had my masters license for almost 20 years but I can’t unleash those secrets either. They’re hidden from us by the powers that shouldn’t be
Bro you should be teaching this in a class room a lot of electrician would learn more from you
@j b what is he teaching
Selling Electrician U to big electrical contractors so they can train their apprentices is the goal here.
@@flueflame5438 do you like the codeo
@@flueflame5438 do you like the video
Thanks man. I am just starting level 2 at 46 years old (brain not quite as sharp as it once was). Your teaching made it very easy to learn this bit. Thank you.
You explained it in some ways I've never heard of or thought of, like the part at the end where you explained that the 2 equations with a denominator, are the 2 that explain the inverse relationship between current and resistance.
Great video. Ohm's law is always a good basic formula to get a handle on when learning this trade!
Working as a mechanic and my current job just made me take a basic omhs class, which I knew but was nice. What wasn't cool was taking the course on what electricity was ie the atomic break down.
@@christopheryoung826 Oh it gets complicated!
@@willfergusson724 it definitely can, but its the future so im okay with learning
Great tip on how to quickly tell the relation if it’s directly or inversely proportional just by eye balling the equation.
The commutative property of mathematics is a wonderful thing.
Yet where wattage is concerned, voltage and current operate inversely for a given wattage.
Not if the given wattage is a resistive load.
@@atmacm We should ask what is the constant. Can we change the voltage, yes. Can we change the amperage by changing the voltage, yes. The only constant is the resistance. R=E/I. If R never changes, then E and I are directly proportional. If E and I are directly proportional and P=EI, then P is directly proportional to E also in this scenario.
@@rynocop7958 yes, this is what happens in resistive circuits.
Always remember the angle of the dangle is adversely proportionate to the heat of the meat
Excellent point Jason. I used to get confused with voltage and current being inverse of each other where power was concerned and being proportional of each other in the example Dustin showed.
I always found your videos to be really innovative and really impactive educationally cause I'm a student who's based on the electrical field and your videos has really been a stepping stop for me ❤❤
Bet you didn't think when you became an electrician you'd also be a math teacher. Great job explaining this stuff.
4:15 probably a slip of the tongue but "as voltage increases amperage will always be " LESS not more
Great video and I really appreciate what you do for our industry...!! 🤘⚡🤓
Edit: every electrician should know ohms law by heart. Can't effectively troubleshoot without a solid grasp of theory...💯
Thank you. Thought I’d lost it all.
If you have double the voltage acting upon the same resistance it will double the amount of current flowing. You are probably thinking of the power equation which means if you have a given wattage and double your voltage your current would be half.
@@tomgrummett4591 no it will have HALF the amount of current flowing...
Current ALWAYS halves as voltage doubles
@@MrMaxyield Georg Ohm disagrees with you.
@@tomgrummett4591 So you're actually saying that as voltage doubles current ALSO doubles...??
Johnson - Nyquist also disagrees.
The only exception to ohms law are non-ohmic elements like diodes and batteries but you didn't mention either...
Ohms law is the reason for instance why we drive lighting circuits at 277v or motors at 480v instead of 120v. Because the current is decreased which has many other benefits...
That studio looks dope
Thanks for the clarification, your videos are helping out so much keep up the good work 👍
So what you're saying is, if you want more current you have to lower the resistance!?!
In transmission lines they jack up the voltage and that lowers the amperage. They do that for safety. In that case voltage and amperage are inversely related. When you transmit it to a building from the transmission lines the voltage is transformed (transformer)to the voltage needed. Feel free to correct or add anything to my understanding.
How come the voltage and current are indirectly proportional when it comes to transmission lines?
I have to say it has been amazing being able to utilize my dad, as a Naval Electrician and retired, and your channel to bridge the gap across all things as a new homeowner in my electrical system. As a low voltage guy myself, I feel more confident in troubleshooting and making good decisions. Thank you for the years and hours of video you have given to others like myself.
I noticed in many ways current behaves the same as water. Voltage is analogous to pressure and Current is analogous to volume. Two pressure tanks set at different pressures connected together behave the same way as two batteries of different voltages wired in parallel. A pool full of water won't hurt you if you stick your hand in it but apply that same water through a jet at 80K PSI and it will amputate limbs. All of the current in the world is harmless without enough potential (voltage) to drive it; although this is rarely the case it just highlights my point. When I started learning this "water logic" gave me a clue.
Remember why high tension lines run at 11k volts...they can then run at low amps. Low amps mean you only have to use thin cable. Can you imagine if high tension lines ran big amps? They'd be so heavy they'd never hold up. And they'd become radiators.
So we are lucky big volts mean small amps.
Great point imho.
Well done.
Thank you
What about when you have power constant formulas? Because in some scenarios when you raise the voltage current will decrease.
That’s correct Jonathan
Great video. Would love to take some of your courses on the website. Just a little expensive my man! I get it, but for an apprentice, it’s tough to justify those prices. I appreciate what you’re doing though!
Love your videos man. I'm currently in school learning from master's in the trade, and watching these videos at night after classes to get closer to mastery myself. Thank you for all the knowledge and tips!
Could you possibly cover three phase motors for commercial application and industrial application? We get into that in about a month and I wanna know more before hand to have a better chance in the classes. Thanks if possible, and be safe out there!
Very well done, Grasshopper!
Great explanation.
Great explanation
Thanks man, well done!
Thank you so much for this☺️
Awesome video bossman!
This would have been the perfect opportunity to point out that the math shown in this video assumes an infinite power supply. However, doing the mathematics using a fixed power supply, the opposite is true and voltage is inversely proportional to current. This is the reason transmission lines use such high voltage as raising the voltage, reduces the current, and allows for the use of smaller gauge conductors.
Couldn’t resist watching…
Great video as always
Wondering if you could explain how GFCI break works sometime
Wow you made that easy wish my teacher s had done that 🤔
Good vid man. What gets me is if higher voltage higher amperage according to the ohms law formulas. But motors other equipment etc. Operate at lower current draws with higher voltage.
That is bc the higher the voltage , the less amperage / current you will draw
I’ve been confused about this too. I think volts/ amps are only directly proportional at the same resistance, and equipment meant for higher voltages physically has higher resistance. I’d like to hear Dustin’s take on it though.
You're confusing 2 separate equations. When you're looking at a motor, you're seeing the power required to make it run. Possibly something like 5,000 watts. Power is W=IxE. So a 5,000 watt motor at 120 volts is 5,000/120 = 41.66 amps. That same motor at 240 volts is 5,000/240 = 20.83 amps.
@@brianjaymchugh and that is the correct answer 👍🏻. FYI, 1 horsepower = 746 watts
because in a motor you are not just dealing with a resistive load but also an inductive and possibly even a capacitance load resistance
How come when we have watts divide by voltage you get amps , and when you increase the voltage, amps go down ?
Got question plz if u have a 200 amp 3 phase disconnect 120,208 what size fuses would be right ? 200amp 250v or 100a 250v
200 Amps is 200amps. The voltage doesn't matter...
Very, VERY well done!!
I always remember pepe squared. P/ e/ p/ e (squared)/ then on the bottom, 3 I's to the left, 3 R's to the right & e in the last spot
???
@@fomoco300k hard to do on text because of the way its written out
That is a really cool digital whiteboard, please share the Link and specs?!
I'm still on the fence about whether or not i like it to be honest. The software side of it is really archaic. Overall I don't recommend it very highly but it does act as a touch screen desktop monitor as well - there's just issues with latency when drawing on it as a monitor rather than using the BenQ Android side of it as a drawing tablet. Its a BenQ brand tv though if you want to check it out.
well done very good!! you should do a math channel.. You very clued up I am honestly impressed!!
Great examples. Thanks.....
Great video I remember ohms law from my electric school lol good to remind me lol
"i use unbreakable oversize plates because it covers up how shitty of an electrician i am , but doesn't stop me from calling my self "Electrician U" i am not stuck with those shitty looking oversized plates that look like shit, flexing, the customer is, after I am gone"
Sort of related seen some videos like related but there was/is a saying it's not the volts that kill its the amps. But voltage increses resistance decreses amperage increses was how I was explained that idea.
Hey Electrican U man, totally different subject have you done any electric vehicle power hook ups yet. Stand by power support for EV at residential homes because this is what's coming in near future like tomorrow. New installation what will the breaker ratings 60A, 40A, 30A etc...?
50A Circuit with a NEMA 14-50 receptacle.
@@flueflame5438 👍🏿
Wait, so then how come when you add loads (resistance) current goes higher?
@ElectricanU please answer Im confused now!
There is no "relationship" between voltage and resistance. If you have a simple series circuit... changing voltage from 120V to 240V isn't going to change the circuit resistance at all! It'll surely increase the amps flowing through the ckt, but will not change the ckt resistance by even 1 ohm!
Good job !!
why don't they use "V" in the formula, instead of "E". and "A" instead of "I"? would be less confusing
Because they use letters to define what they are. What is voltage? Electromotive force, therefore "E". What is amperage? Intensity of current, therefore "I".
@@surferdude642 just to clarify EMF does NOT equal Voltage and Intensity of Current does NOT equal Amperes. They are different things. Volts is the unit of measure for EMF (E) and Amperes is likewise for Intensity of Current (I).
@@ikerivers1795 Thank you, my mistake.
Keeps the tards out….😜
Great vid!!
Say bro can I become a electrician by getting my associate in electrical system technology?
No
i have a feeling youre gonna be a trainer/teacher at some trade school when you retire from the tools
It's not called a "Wheel"... it's called "Ohm's Pie" (circle around E over I * R)... at least that's what the Navy taught us in the advanced electronics courses I attended!!! :-)
They taught you wrong lol
This guy makes entertaining videos. Don't get me wrong. But he is an academic gate keeper. He will never unleash the secrets to free energy unto us the masses.
Nah, we’re not gatekeepers. We’re just working with what we’ve got. I’ve had my masters license for almost 20 years but I can’t unleash those secrets either. They’re hidden from us by the powers that shouldn’t be
when i sit here watching and quietly meditating all i can say is "ohm"
I have an app with Ohm’s law and others.
merch please
we've got tons of new stuff up, check www.electricianu.com/eu-merch
It’s complicated for me to remember the formulas so I use the ohms law calculator 😂
Fun fact: Ohm's Law is actually not a law. It was empirically discovered by Georg Ohm. It should have been called Ohm' Rule but not law.
Man…..feeling gutted here. Had thought the higher the voltage the lower the amps….line and load with a transformer. Damnit.
when making those comparisons, make sure you got the third term fixed/constant. Otherwise you will rat-hole for no reason.
You remind me of Ivan Moody.
Well I mean nice this way but if you were confused before this video you damn sure are now LOL :-) :-) I understand I just wish I didn't 😆
Ia this physics class
Honestly I didn't cach it well
Has anyone here ever heard of "P E I R" ?