POV: Discovering the Coulomb's Law From First Person Perspective

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  • Опубліковано 29 жов 2024

КОМЕНТАРІ • 42

  • @PhilFogle
    @PhilFogle День тому +2

    Two wires carrying currents in the same direction should attract each other, not repel each other, as shown. This is the 'pinch effect'.

    • @lukasrafajpps
      @lukasrafajpps  День тому +1

      Thank you for correction my bad I will pin this comment

  • @Grateful92
    @Grateful92 День тому +2

    Thanks for making this eye-opening video. To me, this video is the most comprehensive video anyone has ever made about Coulomb's Law. After watching this video I feel like I could have discovered this law; that's how intuitive yet rigorously true the video is. Thanks again, you will always be praised by those who want to actually understand electromagnetism.

    • @lukasrafajpps
      @lukasrafajpps  День тому

      thank you for the kind words!

    • @Grateful92
      @Grateful92 16 годин тому

      @@lukasrafajpps these are not 'kind' words; these are the words that you deserve!

  • @danielc.martin
    @danielc.martin 22 години тому

    Honestly, this thorough conceptual videos that makes you "derive" everything from very fist principles are absolutely great, since books (even teachers) dont even say anything about it. You know, they often just tell you "yes, greeks knew about this, and here are the equations", which doesnt make you rigorously understand anything at all. At the end, you have to spend a lot of time, which can be done much more productive with videos like this. Please, do more videos like this on other topics!

  • @drbuckley1
    @drbuckley1 День тому +7

    Wish you were my instructor in high school.

  • @jpsmith8488
    @jpsmith8488 День тому

    Brilliant - thank you for sharing your gifts of insight and clarity with us. How I wish you had been my uni lecturer when I was trying to understand Hamiltonian and Lagrangian operators.

  • @TheJara123
    @TheJara123 День тому

    I was wondering like this kind of approach to phy and you have done it marvellously... appreciated man!!

  • @LowellBoggs
    @LowellBoggs День тому +1

    Very nicely done. thank you for this video. Looks like a lot of work

  • @momentum8989
    @momentum8989 День тому +1

    this is how every new concept/equation should be taught
    Usually equations are just written on the board with little motivation

  • @Liatlordofthedungeon
    @Liatlordofthedungeon День тому

    Great video! Thank you.

  • @aahaanchawla5393
    @aahaanchawla5393 9 годин тому

    Coloumb invented the torsional balance to find the expression fkr electrostetic force using the method described in the video. In fact the same torsional balance was used later by Cavendish to verify Newton's Law of gravitation.

  • @danielc.martin
    @danielc.martin 22 години тому

    Great video

  • @analog_guy
    @analog_guy 21 годину тому

    The mobile charges in conducting spheres produce polarization effects that greatly complicate the calculations and lead to some surprising results. As is pointed out in this video, the charges distribute to produce zero field internally in conductors. John Lekner, in his paper, "Electrostatics of two charged conducting spheres", says, "We prove that two charged conducting spheres will almost always attract each other at close approach, even when they have like charges." (Wow!) Some other interesting papers are "Precise Calculation of the Electrostatic Force Between Charged Spheres Including Induction Effects", by Jack A. Soules; "Electrostatic Force Between Two Conducting Equal-Sized Charged Spheres", by Banergee, Levy, Davis, and Wilkerson; and "Theoretical Assessment of the Disparity in the Electrostatic Forces Between Two Point Charges and Two Conductive Spheres of Equal Radii", By Kiril Kolikov. Soules says, "Coulomb was so eager to prove the 1/d-squared law that he overlooked the experimental observation of polarization."

  • @alexandrekassiantchouk1632
    @alexandrekassiantchouk1632 День тому

    If you are interested in deeper relation between Coulomb's and Newton's formulas, check first 3 pages of "Classical Physics Beyond Einstein’s" showing F/D² dependency of any force on time dilation factor D. Then check chapter "66. VACUUM PROPERTIES AND TIME SPEED: Permittivity, Permeability, and Time Dilation" in "Time Matters, 10th edition", which shows Permittivity ~ D².

  • @ronweber5652
    @ronweber5652 День тому

    Thanks!

  • @dimdimich
    @dimdimich 9 хвилин тому

    On another Earth unit of charge can also be defined as amount of specific substance (metal?) deposited on electrode during electrolysis.

  • @m.c.4674
    @m.c.4674 День тому

    Actually good video

  • @luudest
    @luudest День тому +1

    I was already here when you all have been also been here.

  • @mrslave41
    @mrslave41 День тому

    2:11 "this is just guessing" - so please explain - what is the proper method by which science works?

  • @rkalle66
    @rkalle66 20 годин тому

    Instead of resizing the ball some can just change between a massive ball and a hollow ball. And just by thinking some can conclude that charged particles will allways distribute only on the surface because every charged particle will move the farest away from each other.
    Why? Because the force to each particle on a ball follows the same rule as the force between two charged balls.

  • @danielc.martin
    @danielc.martin 22 години тому

    Could you do experiments on this?

  • @sphakamisozondi
    @sphakamisozondi День тому +1

    I have a hard physics question for u.
    Why weren't you my physics teacher back in high school 😭

  • @philoso377
    @philoso377 День тому

    Page 4:30 charge go by surface area and not by volume. A water tank do go by volume.

  • @philoso377
    @philoso377 День тому

    OK first thing first. Distance between sphere surface or sphere center? Why?

    • @lukasrafajpps
      @lukasrafajpps  День тому +1

      That would be better to talk about with regards to Gauss's law but if you are outside of a charged ball you can think of it as a point charge.

  • @LmaoDed-haha
    @LmaoDed-haha Годину тому

    Make more videos like this on electromagnetism.

  • @mrslave41
    @mrslave41 День тому

    1:03 "inverse square law" - as far as i know - 1/r^2 comes from the aether - fluid assumption.

    • @kevconn441
      @kevconn441 День тому

      Comes from geometry.

    • @mrslave41
      @mrslave41 День тому

      @ geometry 📐 is not mechanical ⚙️. physics must be [quantum] mechanical ⚙️.

    • @kevconn441
      @kevconn441 16 годин тому

      @@mrslave41 Sounds great but you are still wrong about the inverse square law.

  • @pereloup
    @pereloup День тому

    11:45 1A = 1C / 1s

    • @lukasrafajpps
      @lukasrafajpps  День тому +1

      Oh my bad! However I try I always miss some mistakes

  • @PWFSeattle
    @PWFSeattle День тому

    Very nice video, but there's one mistake - 1 A of current is the amount that produces 1 N of force between two wires that are 1 m apart if the wires are 1 m long, not infinitely long. (Infinite wires would exert an infinite force.)

    • @lukasrafajpps
      @lukasrafajpps  День тому

      Hi maybe it wasn't clear in the video but I said 2*10^-7N per meter of length of the wire so each meter contributes this amount but I agree I could make that part more clear. Anyway, not 1N but 2*10^-7N

  • @RBRB-hb4mu
    @RBRB-hb4mu День тому

    Please see if my harmonic oscillator violates Columb law not Columbus

  • @proyt4838
    @proyt4838 Годину тому

    Tutla hai kya tu

  • @adlerbrietzke
    @adlerbrietzke День тому +1

    First