Maxwell's Equations - Basic derivation

Ғылым және технология

A basic derivation of the four Maxwell equations which underpin electricity and magnetism.

Пікірлер: 582

  • @imagination7710
    @imagination77108 жыл бұрын

    Net flux and chill

  • @imagination7710

    @imagination7710

    8 жыл бұрын

    BLUUUEERRGGHHH

  • @FingerThatO

    @FingerThatO

    8 жыл бұрын

    +Abhinav Sharma Anal much?

  • @christianthaisen397

    @christianthaisen397

    6 жыл бұрын

    Imagination ii

  • @xx_faze_rolf_xxl4029

    @xx_faze_rolf_xxl4029

    6 жыл бұрын

    Yeah enjoy your VAC ban for that

  • @jibran8410

    @jibran8410

    5 жыл бұрын

    weird flux, but ok

  • @ProfessorMastermind
    @ProfessorMastermind5 жыл бұрын

    One of the best teachers . I wish I had a teacher like him in college . So clear and precise .

  • @gahangwasteve8789

    @gahangwasteve8789

    4 жыл бұрын

    Now you do

  • @jacobvandijk6525

    @jacobvandijk6525

    3 жыл бұрын

    Or didn't you pay enough attention at the time? It's always the other guy, huh?

  • @alwaysdisputin9930

    @alwaysdisputin9930

    3 жыл бұрын

    @@jacobvandijk6525 Yes. It usually is. For example it's not impossible to derive e = mc² quickly & mathematically in YT videos. However, 95% of teachers are not able to do it. They simply do not have the skill that DrPhysicsA has. The ones that try don't get many views because their videos are confusing & unsuccessful. Great teachers are like gems I found some other things that have gem-like properties: 1) A book: Engineering Mathematics by Stroud - very gentle & clear with many questions & problems to work through 2) Supermemo software uses flashcards to make it almost impossible to forget the stuff we learn 3) Meditation on compassion & loving-heartedness.

  • @verysimplephysicsinthamil1436

    @verysimplephysicsinthamil1436

    3 жыл бұрын

    Good Expectation

  • @lawliet2263

    @lawliet2263

    2 жыл бұрын

    @@alwaysdisputin9930 hey man i too love goddesses but in bed since they hav huggge bobos

  • @meroxyersox
    @meroxyersox8 жыл бұрын

    You have saved my degree, that's not a joke or an exaggeration, I honestly do not believe I could have passed my electromagnetism module without the help of this video. Thank you DrPhysics!

  • @DrPhysicsA

    @DrPhysicsA

    8 жыл бұрын

    +HighFiveTRex Thanks.

  • @robertoflavioarguellesarre5836

    @robertoflavioarguellesarre5836

    7 жыл бұрын

    HighFiveTRex This comment made me suscribe without even watching the video yet.

  • @ssemakulapheastus2651

    @ssemakulapheastus2651

    6 жыл бұрын

    HighFiveTRex thank n keep up

  • @qwerty90615

    @qwerty90615

    6 жыл бұрын

    I sure wish I had this video when I was taking electromagnetics. It is the same basic materials presented by countless others, but the clarity, the delivery, and pace are excellent. The handwriting and screen movements are natural, quick and legible. I get the idea DrPhysics has been delivering such material for some time.

  • @jeroenfeher8107

    @jeroenfeher8107

    5 жыл бұрын

    Understanding how to explain a subject is an incredibly undervalued communication skill isn't it.

  • @osoyconam
    @osoyconam9 жыл бұрын

    I'm spanish, and I have to say this is the best video I have found about the Maxwell's Equations. GOOD JOB!

  • @DrPhysicsA
    @DrPhysicsA11 жыл бұрын

    I'm not sure either. It's not my doing. I welcome all comments, although I can't respond to them all. I would delete comments only if they were rude or abusive. And I'm pleased to say that so far, that has not been the case for any of my videos. A tribute to physics enthusiasts.

  • @MarcelRGuimond
    @MarcelRGuimond9 жыл бұрын

    Wow ! Who needs a classroom when you have this quality of presentation and delivery?!

  • @lesking6541
    @lesking65412 ай бұрын

    At school, we were given a copy of George Gamows Biography of Physics to read. I was bowled over by the story of James Maxwell showing mathematically that radio waves are emitted by an oscillating charge and that he had calculated the velocity of these waves and it was the same as the velocity of light. I think it was this that enthused me to do a degree in Physics, along with Special Relativity. Unfortunately, my maths wasn't up to the task, so I changed to a Mechanical Engineering degree, but I have always regarded Maxwells equations with awe. I now understand them, at seventy-seven years of age. Got there eventually.

  • @DrPhysicsA
    @DrPhysicsA11 жыл бұрын

    Thanks. And greetings from the UK.

  • @seannyman5844
    @seannyman584410 жыл бұрын

    you are freaking awesome. I've been through a few physics/engineering classes and none of them know how to "dumb" down the idea and equations as well as you have. You're a great teacher.

  • @DrPhysicsA
    @DrPhysicsA11 жыл бұрын

    Classes are really important. I just cover the basics or provide revision material. Classes go deeper and allow you to do worked examples. Good luck.

  • @warrenchu6319
    @warrenchu63193 жыл бұрын

    7:54 Maxwell's 1st Equation; 17:29 Maxwell's 2nd Equation; 37:44 Maxwell's 3rd Equation; 50:40 Maxwell's 4th Equation.

  • 2 жыл бұрын

    Ahh - to the point. No background music, animations etc. Always enjoyable to listen to a teacher that knows his stuff and sets the right level.

  • @brianb2627
    @brianb26278 жыл бұрын

    Simply put... This is a prime example of an excellent educational video. Thank you very much for not only sharing your knowledge, but delivering it spot on!

  • @Overunity357
    @Overunity3575 жыл бұрын

    You sir, have just created a future physicist. This is the coolest stuff i have ever seen.

  • @fergaltierney8672
    @fergaltierney8672 Жыл бұрын

    Brilliant. It's almost 30 years since I studied these in university but I never remember them being explained in such an intelligent way.

  • @bluefishactcl1464
    @bluefishactcl14642 жыл бұрын

    Excellent !!!!! Basic, complete, accessible !! Entertaining!!! Brings Maxwells equations down to its most basic truths . Thank you

  • @abrahamgetahun39
    @abrahamgetahun396 жыл бұрын

    This man is literally awesome! Thanks for the crystal clear explanations sir!

  • @StephenRayner
    @StephenRayner10 жыл бұрын

    30 minutes in, this is bloody good!

  • @diogomussum
    @diogomussum7 жыл бұрын

    A very simple explanation , you summed up one book in little time.

  • @cartermonroe4377
    @cartermonroe43778 жыл бұрын

    This is the best presentation of Maxwell's original theory that I have ever seen. You really captured the spirit in which he went about solving the problem. He was not afraid to let geometry be his guide, which of course yielded astounding results. I never pass up a chance to look at any of his original derivations, since they are so beautifully done. Thanks again.

  • @philoso377
    @philoso3773 жыл бұрын

    Of all the KZread on this topic, this is the only one I understand completely. Thank you.

  • @steveschein2619
    @steveschein26195 жыл бұрын

    Wow, brought back my entire EM fields one course, okay maybe not all of it. This is one of the best derivations of Maxwell's Equations I've seen.

  • @zacht4368
    @zacht43689 жыл бұрын

    Thank you so much for these videos. I can not tell you how much they have helped me learn new material and refresh through older material in electromagnetism!

  • @pbraju123456
    @pbraju1234565 жыл бұрын

    I wish I had such a tutor in my engineering days. You have dissected down every equation to tiniest bit and explained I can really call you Master of Electromangetic Engineering. Awesome

  • @cochisewolf
    @cochisewolf11 жыл бұрын

    Thanks. I very much appreciate the time, energy and effort put in to making these available.

  • @m3g4nf0x1zH0T
    @m3g4nf0x1zH0T7 жыл бұрын

    This is the perfect summary of my undergraduate physics course. Excellently explained! thank you very much for your efforts :)

  • @hugoperozo4895
    @hugoperozo48953 жыл бұрын

    This is the BEST explanation I have seen on a complex subject. Thank you for taking the time to make these videos. All your videos explain the concept in simple terms and the math behind it with simple derivations. I know there is more to it but derivations clearly outline the concepts behind the equations. Thank you.

  • @natrajsarma9938
    @natrajsarma99384 жыл бұрын

    One of the best physics teachers . Makes even the hard topics easy and clear .

  • @itseasyitspractical
    @itseasyitspractical4 жыл бұрын

    One of the best physics videos I have ever watched! Congratulations! Great explanation!!!

  • @TheR971
    @TheR9717 жыл бұрын

    Thank you very much for this summarization! Concise and does not require too much knowledge. Very nicely done!

  • @clakoclakson
    @clakoclakson6 жыл бұрын

    It's amazing how easy you make it look. Your pace of speaking, the pronounciation (I'm not english), and the presentation is excelent. Thank you very very much!!! Greetings from Spain

  • @jaideepdadi8119
    @jaideepdadi81193 жыл бұрын

    Your video saved my QA session in college. Thanks a lot

  • @sablezubshruz9811
    @sablezubshruz98117 жыл бұрын

    Very, very clear and clean explanation. Probably best i see so far on youtube.

  • @hanzishiguro8866
    @hanzishiguro88668 жыл бұрын

    We need more teachers you like you sir.

  • @dudeskidaddy
    @dudeskidaddy7 жыл бұрын

    Wish I had this guy teaching my electrical engineering classes. Great jon

  • @adrianboni2132
    @adrianboni21325 жыл бұрын

    i remember my Physics 73 instructor Mr Lozano with your lecture. Very informative. Feels like i was a in college again.

  • @fcslash
    @fcslash8 жыл бұрын

    OMG I love you. If it wasn't for your wasn't for your videos I would be struggling so hard studying for my General Physics exam!!! All of this is SO well explained

  • @markkinnard796
    @markkinnard79611 жыл бұрын

    Excellent discussion. The best I have ever seen. I wish I had you as a professor when I was in college. Keep up the good work and thank you very much.

  • @rayyan21d
    @rayyan21d3 жыл бұрын

    I'm a high schooler and thanks for helping me 🥺

  • @linanouman9545
    @linanouman95452 жыл бұрын

    Everything added up really well. Thank you for the explanation!

  • @mfelix3511
    @mfelix3511 Жыл бұрын

    Thank you so much, I cannot even express how much better you are at teaching this than my lecturers are. You are saving my degree.

  • @ParamjitSingh-gz3de

    @ParamjitSingh-gz3de

    4 ай бұрын

    how so?

  • @michaeljburt
    @michaeljburt11 жыл бұрын

    Wow this video is incredible! Just took a physics course last semester on electricity and magnetism, and this is an excellent refresher. Going in to my second year of electrical engineering in the fall and this is the perfect video to review. Your explanation of fields is very clear and simple- if anyone asks me about them I will definitely point them here. Thanks!!

  • @arjunvadlamani3248
    @arjunvadlamani32487 жыл бұрын

    This is what I'm doing my IB Math Internal Assessment on. Absolutely spectacular.

  • @soumya508
    @soumya508 Жыл бұрын

    The equations that made me fall in love with Electromagnetism and finally i spent 4 years of my life learning Electronics and communication engineering! Ah Good old days :)

  • @supershaye
    @supershaye8 жыл бұрын

    You explained it so intuitively. Thank you very much.

  • @dae1366
    @dae13665 жыл бұрын

    As with your lecture on the General theory of relativity. Extreme clarity achieved by explaining what all the terms mean and not assuming that we know them. Extremely useful for the none physicist.. many thanks

  • @EmyllSomar
    @EmyllSomar11 жыл бұрын

    I needed this. I spent about an hour trying to explain it to a friend a few days ago. This video would saved me that time. ;)

  • @DickHoskins
    @DickHoskins2 жыл бұрын

    Excellent presentations. Just shows how a pen and paper or chalk and blackboard is all a great teacher needs. Of course this iPad I am watching it is very handy.

  • @Furiouslyfunnyfizzix
    @Furiouslyfunnyfizzix11 жыл бұрын

    Really liked this video. Very clearly and succinctly explained - well done. Thanks!

  • @theprocessionist6442
    @theprocessionist64427 жыл бұрын

    I'm probably going to watch this dozens of times. :D Thank you. It's going to help me work out some seriously cool stuff.:)

  • @DrPhysicsA
    @DrPhysicsA11 жыл бұрын

    Thanks for drawing this to my attention. You are quite right. I had intended to say that the dot product was the product of two vectors. But as I suspect you are aware, the dot product is actually called the SCALAR product. The “vector product” can also be called the cross product. I have made a small annotation on the video to make this clear. Thanks again.

  • @marcolopes1180
    @marcolopes11809 жыл бұрын

    I'm going through some reviews for my electric machines class. Your video was really helpful thanks alot.

  • @akarshsingh1540
    @akarshsingh15408 жыл бұрын

    Thank u Dr. physics for providing such in depth knowledge of basics of em

  • @georgegrech5347
    @georgegrech5347 Жыл бұрын

    18.50.I think that the second law holds because the flux going from south to north inside the bar magnet balances out the flux emerging from the N pole and then going out of the closed surface. The closed surface is just a mental construction and may be considered closed even when a bar magnet goes through it. A great teacher.

  • @joemartin2916
    @joemartin29168 жыл бұрын

    very simple and methodical class ...thumbs up!!

  • @jdrv9353
    @jdrv93535 жыл бұрын

    This is a truly enlightening video.

  • @alibabatwist
    @alibabatwist8 жыл бұрын

    your method of presentation, your fantastic accent, and the clarity of your teaching made me impressed and I sincerely say : thank you very much.

  • @DrPhysicsA

    @DrPhysicsA

    8 жыл бұрын

    +Ali Baba Thanks.

  • @philippelaperle4679
    @philippelaperle46796 жыл бұрын

    Thank you for an exciting lecture replete with details.

  • @jameshamilton356
    @jameshamilton3562 жыл бұрын

    You have made difficult subjects in simple terms.Thank you Sir.....

  • @MGTOW-nn9ls
    @MGTOW-nn9ls10 ай бұрын

    Mind-boggling lecture 👌

  • @babulkumarsamaddar98
    @babulkumarsamaddar985 жыл бұрын

    Sir, your presentation is very nice and easily communicable.

  • @thetimijs
    @thetimijs11 жыл бұрын

    Thank You for covering this material! As You've already said, this if perfect stuff for revising the material for the upcoming exam! I am verry pleased, that I found this channel at the right time so thanks again and greetings from Latvia! :)

  • @johnmcguire3763
    @johnmcguire37634 жыл бұрын

    You are so concise! Thank you!

  • @musthafamb1757
    @musthafamb17572 жыл бұрын

    A very interesting presentation... Thank you so much ❤️

  • @amritmalhi4216
    @amritmalhi42166 жыл бұрын

    really easy to understand and very helpful thankyou soo much sir and keep posting such kind of helpful videos for us

  • @s.platini9390
    @s.platini93907 жыл бұрын

    Very clearly explained! Thank you sir.

  • @ayushipandey3857
    @ayushipandey38578 жыл бұрын

    From Electrostatics to the starting chapters of Wave optics, this video covers everything! (I even remember the equations now XD ) Thank you so much DrPhysics!

  • @lawliet2263

    @lawliet2263

    2 жыл бұрын

    Hey baby, where do you live?

  • @ahmedgaafar5369
    @ahmedgaafar53699 жыл бұрын

    super well done...i wish you were my teacher years ago.

  • @mrdobbles3481
    @mrdobbles348110 жыл бұрын

    Thank you thank you thank you!! This was extremely helpful!

  • @sinangemicioglu2353
    @sinangemicioglu23534 жыл бұрын

    Perfect lecture. Most useful in all

  • @fuahuahuatime5196
    @fuahuahuatime519610 жыл бұрын

    19:00 I think even if you could do that, there would be just as many magnetic field lines leaving the area as magnetic fields going into the area, so it would still be 0 either way.

  • @NehadHirmiz
    @NehadHirmiz8 жыл бұрын

    Excellent Tutorial. thank you for your time :)

  • @wolfisr
    @wolfisr5 жыл бұрын

    Wow, you're doing a very good job here! Thanks!

  • @Cannongabang
    @Cannongabang8 жыл бұрын

    wow i understand everything right now... congrats and thanks so much!

  • @MyWorldvisit
    @MyWorldvisit10 жыл бұрын

    Very nice explanation, unable move to another video, great voice and great presentation of the subject....Thank you for sharing your knowledge......great full to you sir......

  • @bablobko
    @bablobko4 жыл бұрын

    Best, The Best derivation on Internet.

  • @ottoomen5076
    @ottoomen50767 жыл бұрын

    I appreciate your insight. Thanks for you time.

  • @rajmohann.t252
    @rajmohann.t25211 жыл бұрын

    thank you very much for responding to my request and making this great video. Its absolutely superb.

  • @kevindonahue9418
    @kevindonahue94187 жыл бұрын

    Very nice explanation. TY.

  • @enochbrown8178
    @enochbrown81785 жыл бұрын

    Truly brilliant! Thank you very much!

  • @danieldanieldadada
    @danieldanieldadada7 жыл бұрын

    As someone who saw this 2 years ago in college and needs none of it in my faculty (civil engineering) I can say this was pretty neat. I thought I'd never unverstand Maxwell's equations. At this moment I understand 100% of the 1st equation.

  • @hacsince1991

    @hacsince1991

    7 жыл бұрын

    dan iel I was just thinking the same thing. I couldn't even remember more than one definition out of every two hour Chem class.. and that in the tenth grade. Hahaha i and I'm 25 and can't believe how beautiful it is now. New favorite subscription!

  • @enriquecruse310
    @enriquecruse3106 жыл бұрын

    This video helped me a lot....Because I am not good in electrostatic and this helped to make my base strong for PGRE entrance.

  • @Willster451
    @Willster4517 жыл бұрын

    Great explanation! Thank you 😊

  • @Christe4N
    @Christe4N10 жыл бұрын

    re: magnet partly inside the sphere (18:23): Even then the equations still hold. The magnetic flux outside of the magnet goes from the north pole to the south pole. Inside the magnet the flux always goes (back) from the south pole to the north pole. If the magnet is placed such that only the north pole is inside the sphere the amount of flux exiting and entering the sphere is still equal: the same amount of flux going from the north pole, out of the sphere to the south pole is going inside the magnet from the south pole, entering the sphere to the north pole.

  • @Francesco_Armillotta
    @Francesco_Armillotta10 жыл бұрын

    Amazing video. Just thanks you so much.

  • @crazymonkeyVII
    @crazymonkeyVII9 жыл бұрын

    awesome stuff, really clarifies a lot!

  • @reasonlessreject
    @reasonlessreject11 жыл бұрын

    Superb. Just what I was looking for.

  • @guitarttimman
    @guitarttimman5 жыл бұрын

    This is an awesome video. Thank you.

  • @eerp13
    @eerp138 жыл бұрын

    Your video have helped me a lot in physics

  • @StephenRayner
    @StephenRayner10 жыл бұрын

    19:00 I agree with Pablo P, the magnetic field lines travel through the bar magnet. So although they don't spread out like they would at the edge of the south pole, there is just as many magnetic field lines passing through the midpoint of the magnet as there are field lines exiting the norht point. Not suggesting Dr Physics is wrong, just that there are different ways to look at this and I hope it helps others to consider this from different angles.

  • @missmakeupzombie

    @missmakeupzombie

    5 жыл бұрын

    Stephen Rayner ldl MmEu

  • @johngayton2078

    @johngayton2078

    4 жыл бұрын

    I just discovered these jewels of knowledge

  • @inceptor2038
    @inceptor20387 жыл бұрын

    Awesome . GREAT JOB

  • @MrKraftyy
    @MrKraftyy10 жыл бұрын

    Really loving what you are doing, keep it up.

  • @pepecohetes492
    @pepecohetes4929 жыл бұрын

    Very didactic and very clear. Thanks!

  • @sakuraudyani3576
    @sakuraudyani35769 жыл бұрын

    I'm having a great time with your videos. They are really interesting and very helpful. Thank you so much Sir

  • @DrPhysicsA

    @DrPhysicsA

    9 жыл бұрын

    Thanks. Very kind of you to say so.

  • @aryaman4068
    @aryaman4068 Жыл бұрын

    Best video i have seen on utub so far

  • @yourbossforever
    @yourbossforever11 жыл бұрын

    My English is no that good , but I really understood this better than my teacher who is explaining in my language ! Thank you for using simple English words :)

  • @kusukuttan
    @kusukuttan5 жыл бұрын

    Wonderful... U r God sent

  • @CrizTaylor
    @CrizTaylor2 жыл бұрын

    I love how physics handle infinitesimals. Anyway🖤, beautiful explanation🔥

  • @kabandajamilu9036
    @kabandajamilu90363 жыл бұрын

    So nice and educative sir

  • @trig6712
    @trig6712 Жыл бұрын

    Many thanks from Maxwelltown Dumfries

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