Basic Electricity - What is an amp?

What is electrical current? What are amps? Find out in this video!
Next video on voltage: • 🔌 Basic Electricity - ...
Website: www.afrotechmod...
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#Physics #Science #Engineering #Electronics

[@Afrotechmods]

This is a highly simplified description of how electricity works. For anyone curious about a more thorough explanation, I recommend this video by Veritasium: kzbin.info/www/bejne/pXrCiWWZgq2Bm5I

[@timewalkwalker]

Great to see you are still active I wasn't able to understand but after your video I understand what's going on

[@laylinswanepoel3052]

You are my hero

[@MrCapi55]

At LAST!!! An explanation without any confusion, or "jumps" to a next item without establishing clearly the last concept. THANK YOU Afrotechmods!

[@SoulGuitarMetal]

Finally a clear but not oversimplified explanation in that matter.

[@armada2390]

Lmfao his exact words were "oversimplified "

[@AvionicsEducation]

thanks Afrotechmods. I am an Avionics (aircraft electronics) Instructor in tucson AZ and have been using your videos to help simplify electrical basics to new aircraft techs.

[@keaixiaomeinv]

"Very handy for when you don't wanna die in a terrible fire" cracked me up. Great presentation!

[@Shanedog76]

or fry one of your electronics!

[@MarcusT86]

That line cracked me up as well.

[@ugnius9646]

I readed this exactly at the same time when he sayd that😂

[@sfcelebnaur]

please add more basics videos. :) thank you. I really enjoy how you explain

[@Sixstrings63]

I want to help my kid develop an interest for Engineering. your videos are so good that he loves to watch them and really understands. When I try to teach him I try to talk to him like an engineer. Thanks for being a great teacher

[@8yerbrain]

It's the subtle use of humor that sets your videos apart, and makes them not just very informative, but fun to watch too. Your hard work is appreciated! :)

[@BoomBrush]

this video is what got me interested in electronics more than ever before

[@nedmitev5189]

I will make no noise So you can sleep nicely

[@nahfid2003]

What about now?

[@Krlcvtkv]

Thanks! I watched over 10 other videos about what is amp and only on this i got it.

[@yooaanaa]

you HAVE TO CONTINUE the series, please! this is the most clear and fun explanation ever! THANK YOU

[@azariahyonas4196]

Hmm 12 grade is pretty hard

[@rakatumu]

So good. the ease with which you've explained difficult concepts to complete beginners is an indication of the mastery you have on this subject. Like an elite footballer controlling the ball and making it look easy, or a master martial artist taking down an agressor with a couple of 'simple' moves in a few seconds.

[@chancewatkins5071]

Thanks so much for sharing the info with us, it was very helpful; Jesus Christ Bless you! :)

[@herrlipp]

Your ability to give straightforward info, and keep it enjoyable is superb! Can't even begin to tell you how much your videos are appreciated...

[@MojoJoso]

Thanks! In my native language (Dutch) there wasn’t any good explaination to what amps truly are. They just explained it based on the Formula watts/volts. Now i finally get it :)

[@JOEZEP54]

Very clear explanation & easy to follow. Good tutorial. Joe Z

[@AcousticBruce]

I like how you get to the point. Your a very good teacher.

[@hugonegrin9399]

When the teacher sends you the video

[@ManuelGomez-lj5ev]

lol

[@ZblueheartX]

i love the way you make these videos

[@ТакиеДела-в2в]

What is amp? Current don't hurt me. Don't hurt me. No more.

[@proxima1194]

Такие Дела good one

[@witrix7569]

Don't Hertz me No mAh* :D

[@prakashs8061]

Amp that is the unit of Current, even while using any load we are mentioning about that any Electrical or Electronics equipments and Components.

[@nedmitev5189]

Ето мое мнение Has to do with плотност тока And temperature per second increasing on 1 kg water The problem is that power to increase the temperature of water От 10 gradusa do 11 градус Бийла бий разная чем От 110 до 111 градуса How to check

[@Ken-mt9eg]

Oooooh ohaoo

[@aidengardhouse9564]

If anyone in my science class finds this come to the back of the class

[@lancelot1953]

Excellent and well delivered presentations! Thank you so much for taking the effort and time to create these videos. You delivery style is entertaining while still remaining very informative - you sound like a born teacher. Thank you again for sharing your knowledge with the YT community, Ciao, L

[@kassutronics]

This "conventional current" vs "electron flow" argument is confusing. Good you try to clarify it, but it is equally confusing to just say "conventional current is wrong". Its not wrong, its a convention, and it doesn't matter from a physics standpoint which convention we choose, as long as we all choose the same to avoid confusion. It is in a way unfortunate that we historicallu call the most common charge carriers (electrons) negative, but there are also positive carriers (eg holes in semiconductors), and they are as important to electronics. The real solution tho this confusion is that for applied electronics you don't care how the charge is carried, and there is no point even talking about electrons.

[@KirkHMiller]

Very helpful series! (I should have watched them all in order, but here I am at the beginning! haha) Fun fact: in Portuguese and Spanish a switch is called an interruptor- makes sense because it interrupts the flow of electrons!

[@MrVecheater]

This is the electronics introduction I've always been waiting for I finally understand what electricity actually is and have an idea why it works My only criticism is that you talk a bit fast. I needed to pause the video a lot. But I like how you explained everything just enough for me to understand what you're talking about

[@bharatkerai9941]

Great skill of teaching.... Was very helpful ND clear!!!

[@buckwheat7424]

isn't it weird though that all these years engineers not only thought that current flow returned to the neg side, but wired systems with diodes and resisters on the wrong sides and it still works

[@FamilyMelton]

Thank you! Very well done video.

[@flybeep1661]

"Very handy if you don't wanna die in a terrible fire".....ow that sweet sweet sarcasm coming out of nowhere lol.

[@renegadeliam398]

ORGANIZATION XIII conga line (something I did not expect in this video)

[@nikesh9685]

i got one question by the way.. What happens to all the atoms that has been used and sent to the positive side of the battery?

[@danielbruno2631]

you cannot create or destroy energy... in other words it never goes away... however, when the fact that a battery "dies" has to do with chemical reaction, not that the energy went somewhere, or the (electrons) but the chemical used on the battery the acids, is no longer reusable... there are two types of batteries. the ones that you can't recharge, and the ones that you can, because you can revert the chemical reaction, for example... your car... every time you turn on your car, it takes so much out of your battery, that your alternator is the one that recharges it... and after a while, the chemical reaction, gets to a point that is not good anymore... I don't remember exactly what, but has to do with acid. and because of that... your battery don't recharge anymore by your alternator... and you end up needing a new battery... if there is a mistake someone will correct me, but you got the idea.. I took electricity class, I'm not perfect sorry, but hopefully I gave you the idea... and no electrons doesn't go anywhere...

[@SageAndOnions]

It's something to do with the positive and negative sides of the battery becoming equal in electrons so that no more can be 'pumped' out (I'm not an expert though - far from it!)

[@TheWeightedTooth]

In reality electron flow is from -ve to +ve ..so current flow is obviously +ve to -ve so how conventional current is wrong ?

[@Engineer9736]

The Weighted Tooth Why would it be obvious that current goes in the opposite direction as the electron flow? Kind of a random unconstructive statement in my vision.

[@danielbruno2631]

because the electrons are the one that moves not the protons. For instance you have an electric circuit, and the conductor is gold. Gold is one of the best conductor by the way, ans current flow, The molecules that make up gold, have protons and electrons (obviously), so as the terminals "cables" are connected in the positive and negative side of the battery, the positive side attracts the neutrons on the negative side. so in the molecules "golden cables" as an example ofc, the electrons will move from one molecule to the other, forming eletricity... I just can't exaplain, I know how it works lol, but im not good at explaining.

[@claudioabado6246]

Thank you. In my quest for self-learning about electricity, I'm glad I can find little gems like this video to help better understand abstractly what is going on in my LED light application.

[@AIR112able]

I feel refreshed after watching your simplified video's

[@ThePlantagn]

Great learning tool, keeping it simple. When will your next series, voltage, resistance ect be available? Thanks again

[@sanketajanavlekar8679]

Do electrons move from postive terminal to the negative terminal or they move from negative terminal to the positive terminal???

[@BGaborr]

Love your vids, so simple but so imformative , can you do a vid about RLC circuits?

[@dyg1984]

Schwarzenegger in the end 🗿😭 By the way the clearest explanation I ever listen to,this is how our teachers are supposed to explain and I believe this is science not the memorization of formulas

[@Electrologia]

But nobody says why these electrons are moving? What is forcing them to move? Why they have to move from one point to another point?

[@BillGarza]

excellent, thank you!

[@nyctiphaes]

where school teachers failed, you made it so simple. Thank you

[@Afrotechmods]

@flurng For anyone reading this, I deliberately simplified the hell out of the atom models. The number of electrons and the nature of the orbits is wrong, but it's good enough for explaining the nature of electric current. If you want to know more, google "modern model of the atom", "s p d orbitals" "valence band" and "conduction band". This is typically covered in upper level high school chemistry classes.

[@flurng]

"Like" if you agree that Afrotechmods is the most BAD-ASS educator on KZbin!

[@tuyen_phan94]

Thanks for your great video. however I don't understand why no current still has voltage.

[@MisterBinx]

I'm in engineering and I the book doesn't clarify that conventional current is not really happening. So I was assuming that electrons were flowing from negative and positive at the same time. Thanks for clearing that up. I wish my teacher took more time to cover details like this because this is all new to me.

[@justinmiller7138]

I can’t believe conventional current is wrong!!! WTF!!!!!

[@ericscaillet2232]

It's not wrong,it's just back to front, right to left etc...all the formulas works the same ,it's just a flow reversal😉

[@0s0sXD]

"Portable doomsday device" xDD amazing video man, really informative thank you alot

[@BoxerDogs]

Very good explanation, especially the part about conventional flow vs. actual flow.

[@BRNOOB_]

3 min ago 👀

[@Tommy271036]

Thank you so much , It is very easy to understand. 🤓🤓🤓

[@ErminTr]

Great presentation!

[@joobasics6891]

Doubling the amperes.. Does it mean doubling the quantity of electrons in a given volume or doubling the speed of the current flow? I really can't find the answer..

[@MisterMattyMo]

Just wanted to make sure people do not get confused. Also your videos are excellent! I am a Physics major but I am REALLY getting into circuits, hope to see more of your videos in the future. :] (Just subscribed yesterday!)

[@CiprianVCrut]

Hi...it matters when I charge the laptop with a different charger that has 2 amps more.. (the original one has 20 w 4 amp, and these 20 w 6 amp)...the battery is defective and I keep it in the laptop just to not turn off the laptop suddenly when the power goes out...I tried with a charger with 3 amps but the laptop its work slowly...thanks..

[@rimmersbryggeri]

I thought this would be about amplifiers. Silly me.

[@ZilogBob]

No, it's current affairs.

[@andiea9689]

Lol ;)

[@BTBMAM]

Im 27 and i now understand electricity. Thank you!

[@thefadeddog7635]

If the electrons goes from negativeside of the battery through the light blub to the positive side of the battery. Why does the battery reduce voltage if it’s recycling the electrons

[@farouk2159]

it does not a negative electron and a positive atom will meet and become neutral

[@vigeee]

Good video. There's however a little confusion at ~1:35. Electrons themselves do NOT move even closely at the speed of light but the electric field does. Example: A current of 1 A corresponds to a transfer of 1 Coulomb of charge per second. An electron carries 1.6*10-19C so you need to move 6.3*10^18 electrons/sec. Divide by the density of electrons in a copper wire (about 8.45*10^22 electrons/cm^3) and the cross section of the wire (for AWG 18 wire) and you get 0.0093 cm/s.

[@comprehensiveboy]

Now THAT is how simple I need it to be!

[@Afrotechmods]

@OldSchoolSkill Could be. Wikipedia would probably have the answer.

[@RoyAndrews82]

So if I put a single 2.5Ohm Wirewound Resistor in a circuit, with a 1.5v battery, if the battery was at 1.5vdc, and if I put a DMM in series after the resistor, and set it to measure current, it would read arround 0.6 Amps, or 600mA ? That also means, the resistor would disipate 0.89 or 900mW of power? So I guess I'd need a resistor that of at least 1 watt to be safe, if not more. Right..? Is that right? So basically, putting a resistor in series creates current.. Right? But putting more than 1 resistor would decrease the voltage, but also creating current right? How about making a video, on how to create current from 1 Amp, to several amps. Maybe use a resistor.. Or maybe some kanthal A1 resistance wire.

[@ciscodiaz593]

I will never accept current flowing from positive to negative. It annoys me when I see this..

[@go6obg92]

By far the best explanation. Thank you! ❤

[@GlynisDance]

Thank you for an interesting - and understandable - video! :)

[@bentheechidna]

How about that Kingdom Hearts cosplay conga line?

[@farlanghn]

Thumbed up for Arnold at the end.

[@NRGpony]

So, quick question. I'm not exactly catching onto the whole "backward electrical current" system. What if the ground isn't back to the battery and is instead to a separate grounding source? How does that work?

[@arunedparunedp8378]

can you explain what is phase, neutral and earth lines are?

[@Inch.docent]

Very very helpful for me who is just found what is electron. Thank you.

[@wbeaty]

> Why dont we base every definition on the flow of electrons? It's because electric current isn't a flow of electrons. In salt water and acid (and in human flesh) a current is a motion of ions: pos and neg atoms all going in opposite directions. In plasmas (fluorescent lamp,) it's pos ions one way and electrons the other. Inside Proton Conductors it's protons flowing (also called 'positive hydrogen ions') Only in metals is the current made of electrons. Well, only in *solid* metals.

[@wbeaty]

> fast is the drift? Google: speed of electricity wiggle My article on amasci has a calculation for 1mm wire at AC 1ampere. For larger current, larger wiggle-distance. In general, electric currents are TINY wiggles. But then, for sound waves inside a hose the air barely moves, even if the sound is at high wattage. That's one way to understand this: electric current is like the air wiggling inside a pipe, while electrical power is like sound waves moving rapidly through the same pipe.

[@cancelcasey]

Finally a video that doesn’t have meaningless garbage in it

[@Afrotechmods]

@Kurtreidable With DC, the current only ever flows in one direction. With AC, the current flows forwards then backwards repeatedly. Hence "alternating" current.

[@somefuckstolemynick]

Great video! One thing, think that the electrons don’t flow at “close to the speed of light” (it’s closer to 1 m/s). The thing that’s flowing in close to the speed of light is “push” or the energy, think sound wave traveling through air.

[@samuellloyd7133]

This vid is amazing - could you please finish the video series? Would really help my understanding of electricity, finally starting to get it!

[@Shashikant2705]

My conventional knowledge gone in trash

[@דנימוטלה-דנימדיה]

THANK YOU SO MUCH FOR THIS!! VERY HELPFUL

[@anotherKyle]

in engineering we say that the positive "holes", the absence of electrons, move from + to - so they kinda worked around the problem of being wrong.

[@mohsinfareed1797]

Thanks man. Very clear description . thanks again

[@udayaai]

Im 27 years old, and I can finally understand what my science teacher was talking about in year 7

[@diehardAMD]

CD player reading AC DC's Thunderstuck = Portable Doomsday Device ;) :P

[@mohammadalshareef5730]

The best explanation I have ever seen, THANK YOU VERY MUCH.

[@youthculture523]

SO do amps measure the *speed* of electron flow or just the *quantity* of electrons passing through a set point? Or do electrons always move at a constant speed when charged?

[@awildmoosey]

1A = 6.24*(10^18) electrons flowing per second (through a certain point in the circuit)

[@youthculture523]

awildmoose yes but it could be both a thin stream of electrons moving quickly or a wide stream of them moving slowly (in crude terms). So does it refer to speed or volume?

[@awildmoosey]

@@youthculture523 Hmm, you bring up a good point. Makes me wonder how similar electron flow is to the flow of liquids, and how applicable something like Bernoulli's equation would be in concept.

[@HopingforPower]

Did you ever make a video describing watts? I like your channel...

[@warphonesS22]

Wow conventional vs reality. Blew my mind. Things are making much more sense now

[@triplefirex2618]

Will any of my friends even open this link😂

[@Ashaira]

where were you when i had to take my physics exam in electronics :D nice explanation. looking forward to the others.

[@OddJobEntertainment]

I've taken several college courses now and not once has anyone ever mentioned conventional versus electron flow. But a lot of things are clicking in my head now.

[@kangre63]

This is a really helpful video to understand how electricity works. The visuals are very well done! Thank you!

[@Maverickf22flyer]

Then how do you explain that the + lead is always hotter than the - lead of a battery (or generator if you will) if the current isn't actually flowing from + to the consumer (any device) then what's left of it (as the impedance does it's job) goes back to the - lead? It's obvious that something is contradictory!

[@snnnoopy]

I'm trying to figure out why the battery in my truck keeps going dead and how a short is doing this. Obviously by increasing current because the wires are melted. Why is my relay stuck causing the battery to be drained and why didn't the fuse blow and why isn't there a resistor to jump from 12v to 8v?

[@slydog75]

I had no idea 'conventional current' was still used. We learned in my Military Basic Electronics course the proper way and were told that conventional current was no longer used.

[@ACitizenOfOurWorld]

Ever wonder why the arrows on diodes/transistors point in the opposite direction of electron flow? ;)

[@slydog75]

@@ACitizenOfOurWorld oh we knew that was why just thought it was left that way so that old schematics weren't outdated.

[@karhukivi]

It doesn't really matter if the charge carriers are negative, the components still work in the same way. It is only when you consider the theory that you want to understand the interactions across junctions.

[@Smirkku]

Is conventional current same thing as initial current? I have 12V 1.2 Ah sealed lead acid battery and it says it's initial current is 0.36A and it's cycle use is 14.4 - 15V

[@eleneasy]

Good video. However, you concentrated on the flow of current in a wire, which is correctly made of electrons. However, current can really be made of positive charges and flow from positive to negative when you use other mediums to convey the current. The example that I always bring is the one of a saline solution. In the saline solution there are both positive and negative ions. They can both move, and they both convey the current. So, in that case, you have a current of positive ions flowing from positive to negative and, at the same time, you have a current made of negative ions that move from the negative to the positive. Another example are semiconductors. They can be of type P or N. P semiconductors conduce current made of positive charges. N semiconductors conduce current made of negative charges. The conventional direction of the current is not a mistake historically coming from Franklin. We actually want to use a conventional current to overcome the issues of having to consider the internal physics of the conductor before applying formulas. It is an abstraction, not a mistake. Abstractions are tools that are used in engineering and in mathematics to simplify modeling and corresponding calculations.

[@thedude7371]

This is "Teaching with Style" thank you so much for such a clear explanation.

[@ghiathorabi237]

Hello, are you gonna make any videos about the volts and ohm please let us know, Thanks,

[@AmazingWorlds314]

Absolutely fantastic presentation that can make one re-excited about science. Simple and straightforward. I see some dislikes here so 2 amperes in the tongs of the disliking trolls.

[@ArifBillahOnGoogle]

How beautiful you explain thank you so much.

[@whophead6837]

2:57 the negative attracts to the positive resulting in electrical current.

[@tvexpert_xd2388]

opposit - to +

[@ChickentNug]

Why don't they just fix the conventional current formulas to have electrons flow negative to positive? I'm sure there's a reason but it seems really simple to me to just figure out how to rewrite it with negative to positive flow

[@techtimes1985]

I'm also a teacher, can you please tell me which software have you used to make this video?