Definition of Voltage and Current (ElectroBOOM101-002)

Definition of Voltage and Current (ElectroBOOM101-002)


Hi, now that you know the most accurate theory of how electron came to life, let’s get into electronics, but not quite yet. I can’t just tell you what the voltage and current are – the video would be too short. You won’t quite grasp the meaning. So when scientists were discovering electricity, they already knew mechanics by heart. And that’s how they were quantifying electronics. Mechanical science is the first thing any creator is exposed to right away. Although our bodies are advanced in mechanics, electronics, chemistry, and computer science is well beyond our understanding. All we can really learn right away is mechanical science. Picking things up, making tools, and such. No matter if you’re tiny crabs or humans. So let’s learn some basic mechanical physics. And what’s physics without mentioning one of the greatest men the world has ever known, Edmond Halley! He was an all-round scientist with his own discoveries and inventions, but his greatest discovery was Sir Isaac Newton. One of the greatest scientists ever! Halley talked to the super introvert Newton and realized that Newton had years of unpublished discoveries. Newton already knew that the gravitational force between two masses was proportional to the product of their masses divided by the square of their distance. Halley made Newton write his knowledge, and published them from Newton at his own expense. He gave Newton and his science the recognition it deserved and this helped make a big leap in science! Halley was a great man. He showed us that you don’t need to be great at something to make a big difference. All you need is to find brilliant minds without discrimination and give them the ground they need to grow, and for that I salute thee! In his book, Newton provided his three famous laws of motion and the second one states that the sum of all forces on an object is equal to its mass times acceleration and for that “Newton” was picked as the unit of force in his honor. Later on, James Watt, the great inventor of steam engine, developed the horsepower. Every horsepower is basically the amount of weight a typical horse can pull up by one meter every second. Which is around 75 kilograms for metric horsepower. That way, he could compare the strength of his steam engines with equivalent of horses. Then James Joule came along and said “Let’s do it properly.” Horses are kind of random and horsepower really [only] works for Earth’s gravity. On the moon, horses can pull a house. The work (W) done on an object would be equal to the force (F) applied to it, which is mass (M) times acceleration (a), times the length (L, ℓ) of distance that object travels under that force. The work would be the energy spent by that force to move a mass by a given distance. We need a unit for this… Joules! Then Joule said “Now that we have a nice way to calculate work or energy, “let’s divide it by the amount of time (t) the energy was spent, and we will have the work done in one second.” which is the Power (P). So if a certain amount of energy is spent in less time, it has a greater punch. And in honor of James Watt, the unit of power shall be known as Watts! *He-Man theme song plays* “I have the power!” [Chorus: James Watt!] And then people became interested in electricity they had already seen thunder and electric eel and knew that you can make this magic Attracting force rubbing amber against fear these are just some pieces of napkin and a plastic ruler rubbed against animal fur But nobody cared until later in 16th century the cool boy William Gilbert did some study on this new force and called it like amber in Latin or Eléctricas which later became electricity also a century and a half later Benjamin Franklin proposed and allegedly performed his famous kite experiment. Well. Don’t do it at home You can’t do it at home. Just don’t do it Ben’s proposed lightning rod experiment killed Georg Wilhelm Richmond back in 1753 so I make Benjamin Franklin the honorary electrical board member then charles-augustin de Coulomb came along and said well obviously there is something flowing inside a conductive medium like a fluid Let’s call that electric charge shown with a Q with the unit off you guessed it Coulomb Coulomb did an interesting experiment to measure the force between two charged balls See for example if I put some known charge on my ruler and bring it close to my pendulum Which is made of a ping-pong ball? It will attract the ball if I know the weight of the ball and how much it moved I can calculate the force imposed on it by the electric charge Coulomb did a similar thing with two charge balls one of which was twisting a spring like string from that experiment He inferred the Coulomb’s law which states that the electric force between two static charges is proportional to the product of their charges divided by the square of their distance Which is very similar to Newton’s law of gravity Later, André-Marie Ampère A teacher and scientists did a bunch of experiments and realized that If we pass electricity between two adjacent wires They impose a force on each other like this The electric current, Which in this case goes in the same direction resolves in the wires attracting each other Oh S***, Too much current ! So, the unit of parent is named ampere or amp in honor of his research and is shown with the capital I The definition of current is if we have two very thin parallel and infinite wires one meter apart 1 amp is the amount of current through these wires that generate 2 times 10 to the power of minus 7 Newton’s of force? Per every meter of wire very small force. I was hoping for a better definition, but whatever Understanding electric current is easy imagine a water hose And you could measure the flow based on the amount of mass Passing a point in the hose per Second like 1 kilogram per second 2 kilogram per second would be more current We can do the same thing for electric current except here mass or volume Don’t matter electricity can move with tiny electrons or large ion particles in solids liquids, or gases What’s important? Is that it’s the electric charge that does the electrical dirty work so the electric charge in coulombs? Passing through a conductor every second is equal to the electric current and therefore 1 Coulomb is defined as the amount of charge that one amp of current can carry every second of Course back then they didn’t know that it is the electron passing through the wire all they saw was that the electricity flows between opposing Charges so they call the charge on one side positive and on the other side negative and said the current flows from positive to negative later based on this definition We figured that the electrons are actually negative and move reverse of the defined current flow But that didn’t affect the science and calculations and in fact sometimes We can argue that it’s the positive ions that carry the charges so we stuck with the original definition in the meantime Alessandro Josep a Antonio and Astacio Walter came along he made the first battery called voltaic pile Which of course was well after the Baghdad battery made by aliens to power pyramids his battery was a source of Electrical energy if you connected a circuit across it it would provide the energy that would push the current through the circuit Back to mechanics if I hold a mass above a surface the force applied to it is equal to its mass times the gravitational acceleration of Earth or G if I let go of height of H it releases an energy equal to the force times distance or MGH But if I don’t let go this mass has the potential to release that much energy Similarly if we have two charged balls like in coulombs setup We know how much force is between them from Coulomb’s law and knowing their distance We know the total electric potential energy They would release if let go now the interesting thing is that the total energy doesn’t affect the current It’s like you’re holding one kilogram of water at a certain height Or a huge ocean of water at the same height and all the water has to go through a single pipe The water would still have to go down one kilogram at a time and the current would be dependent on the gravitational acceleration And the heights that the one kilogram has to go down through which is basically the total potential energy MGH Divided by mass or just gh which is called their specific energy same thing an electronic the electric current is not Dependent on the total energy, but the available energy per unit charge or joules per Coulomb and the unit for this in honor of Alessandra Giuseppe Antonio Anastasia Volta is named bolt Voltage is also known as electric potential and the voltage difference between any two points in space Is the difference between their electric potentials? After all is said and done. I just want you to remember these Voltage is the amount of energy in joules available to move one Coulomb of charge and Current is the amount of charge in Coulomb passing in one second and when the voltage value of one point is higher than the other point and there is a Conductive path between them the positive current runs from the higher voltage to the lower That’s all remember these and I’ll see you next time, but James Maxwell man He wrapped the whole thing in math and where were women when all these great men were shaping the world they were busy being Discriminated against fighting to get their basic rights they were not even allow the proper education Forced into doing what a woman should do you remember? I was talking about finding brilliant minds without discrimination world would be a much better place We would be way further ahead without discrimination. Don’t do it at home SUBTITLES BY BLAZE ANDERSON

100 thoughts on “Definition of Voltage and Current (ElectroBOOM101-002)

  1. The first time i've heard of Coulomb i laughed my ass but intense. The joke is that Coulomb sounds like "Culo" or ass in spanish

  2. Just stay funny before we remember that you’re a Muslim. If we do that then we’ll have no use for you. We have physics 2 to learn that.

  3. So voltage is like heart rate as current is like blood pressure

    Physically they don't mix though.
    Mehdi sure that you don't stop your heart, which is also run by electricity

    Basically your brain is a biological computer

  4. In The moon horses can pull houses haha
    btw perfect spell of alessandro giuseppe antonio anastasio volta 🙂

  5. if electrons don't move much, what is that "energy" that is consumed by the light bulb then? thus turned into light and heat. What is that "thing" that electrons carry.

  6. All the women want to do now is sleep around and be useless, hooray for equality!!! Maybe if we adopted some old fashioned work ethic, some woman may invent something but our parents generation raised a bunch of lazy kids that are trying to lead the world today and turn women into men and men into women.

  7. This definition of current, I told to the external examiner In my Viva and I got a "Very good" from him. By the way we in India are taught all this at lower classes

  8. Wow, I never new Halley, but you are correct. The recognition of excellence is an excellence in itself!

  9. James Watt did not invent steam engine Thomas Newcomen did it Watt just stole the design and recreated it ,I hate James Watt really,by the way all hail magnificent unibrow😂😂

  10. "This experiment led by Franklin killed a man…I hereby declare him the original electroBoom" – I laughed so hard I got a six-pack

  11. Wow, best explanation ever. If you published a book, I'd definetely buy it. Great work and very pedagogical. As Amazing Tech said below, huge respect to you sir.

  12. A good job right up until you went completely off the rails at 9:34 with the cheesy, cringe-worthy, comically ignorant virtue signalling, stemming from your abject lack of knowledge in history, not to mention biology.

  13. I feel like it should be noted that much of Newton’s work on optics was just a coincidental rediscovery of the work of the Arab mathematician Al-Hasan Ibn Al-Haytham. Who discovered many things about light and optics several centuries before Newton was even born. He was also one of the earliest people to say hypothesis must be proven through repeatable experiments, over half a millennium before Francis Bacon created the modern scientific method!

  14. Bro… Dammet gharm just realized it took you FIVE & HALF HOURS to record a 10 min video… (11am to 4:30 pm) wow I'm glad your head did not explode!

  15. You should teach us more… You Look happier. Keep up the good work anyway, I understood a lot from this video and I quite like your teaching style.

  16. The definitions as I'm currently understanding them:
    Voltage – Electrical energy carried
    Current/Amperage – Amount of electricity flowing

  17. Thank you for using the proper term, "discrimination" and not "sexism."

    It's nice to know some people can still communicate in the English language.

  18. it took plus minus 6 hours you to shot this video… grate job man. much respect
    didnt understand thing you said, so i watcht your clock insted…:-)

  19. Women do not care about electricity… Its like saying men are discriminated for not having big achievements in clothes design

  20. Electronics engineer here. I always wondered about the specifics because I was never taught them. Thanks for explaining them Mehdi.

  21. you mtfk droped this fuck don't know what in the mic and i am using headphone way up to the max volume 🙄👍 (sorry about my inglish… i'm brazilian )

  22. Glad to see credit given to the ancient Egyptians' alien forefathers. Disappointed there's no reference to the flat Earth though. 😉

  23. How is it that they say a 12V car battery is not enough volts to hurt you (generally they say around 50V end up getting dangerous) but when it cranks or powers there's actually 20-100A flowing? If 5mA is painful/1A is lethal, how is it not dangerous

    How is it possible a low voltage be able to send a large current? I understand ohms law/voltage is the driving force for the amps; how is it that one 5V USB charger can only send 500mA while another is able to send 2A without increasing voltage?

  24. James Watt didn't invent the steam engine. The first practical steam engine was designed by Thomas Newcomen in about 1712. Unfortunately it was extremely inefficient in its use of fuel, so was confined to pumping out water in coal mines where that wasn't a problem. Watt experimented with steam from about 1759, and it was in 1763, when he was asked to repair a model of a Newcomen engine that he started work on the separate condenser that was to revolutionise its efficiency. It was after he formed a business partnership with Matthew Boulton, that gave Watt access to the skilled machinists and engineers of Birmingham that Watt achieved success with the first production machines installed in 1769. Watt's steam engine continued to be refined, with the addition of low pressure steam as well as atmospheric cycles, and the Boulton & Watt partnership thrived (along with an aggressive approach to enforcing patent law). The royalties charged by the partnership based on horsepower were much resented by industrialists.

  25. Mo'Fo why my youtube app does not notify me this AWESOME youtuber eventhough i've clicked the Mo'Fcking notification bell of this AWESOME Electronics/Electrical Engineer?!?!?

  26. Holy fuck how have I never heard of this guy?
    Jesus christ I would have paid attention in highschool physics if he were my teacher!

  27. Voltage is the quantity of coulumbs found in a source of potential energy, where a coulumb is 6.25×10+18. But amps is voltage / time, in a standard of 1 second.

    100 volts is 625×10+18 of excess electrons potential to do work.

    But time is more a point of relevance, and that potential will expend itself instantaneously if the ability of the vessel permits. Thats why they say 1 ohm is the amount of resistance needed to limit 1 voltage of energy to 1 amp of current, or 1 coulomb of electron flow per second.

    But what about watts and conductance? Watts is voltage * amps: potential * permitted electron flow per second.

    And conductance, reciprocal of resistance, defined as the ease of which electrons flow which is ironically the same value as the flow of electrons per voltage per second, or I / V, or P / Vsquared?

  28. Is it safe to run any electrical machine below of its rated voltage and rated current…..
    Is that harm that machine…..???
    Tell me please…..??

  29. Can you give me an analogy for current and volts… I was confused today in class because I did not understand how there can be voltage when there is no current…

  30. already 2 and a half minutes in, and i'm already having flashback of converting Joules to kg/cm^2. thanks, Metric System.

  31. I wish you get a 10 million subs sir cause this is the best ever damn im a grade 12 student and getting ready for a physics subject and watching your vids made learning fun♥️

  32. 3:46 FALSE! Ben Franklin never did the kite experiment. I read it in a biography when I was bored in Middle School.

Leave a Reply

Your email address will not be published. Required fields are marked *