Turning Magnetism Into Electricity (Electrodynamics)
ฝัง
- เผยแพร่เมื่อ 3 มิ.ย. 2024
- Most of our energy isn't generated chemically like in batteries or by solar panels. Whether, it's coal, gas, nuclear, wind, or water power; it's generated by magnetic induction and governed by Faraday's law from electrodynamics.
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VIDEO ANNOTATIONS/CARDS
How Does Solar Power Work?
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What the HECK are Magnets?
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Does Electricity REALLY Flow?
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What non-scientists don't appreciate is that the entire world's economy depends on coils of copper spinning in magnetic fields.
but... surely there is a better way than one made up 200 years ago....? We've improved it's efficiency, but you'd think with everything we've learned in 200 years we'd have come up with something new?
Signature Edits I’m not sure the there is any way around the copper coils and magnets but the method in which we turn these generator turbines is insane. Our first idea has been one of the best. Use falling water. But then the next 2 are out there. 1.) Let’s dig up
Old dinosaurs and plants from millions of years ago, light it on fire and boil a big pot of water to create steam. The steam will turn the turbine. 2) If we can split a uranium atom we can release a lot of heat to boil a big pot of water. The steam will turn the turbine. So let me get this straight you split the atom to boil a pot of water. Way to go
Shut up...uh bunghole.
@@ronbrennick7351 Yes sir. Sorry Ron. Didn't mean to offend. You give great advice which I will follow starting . . . now. See you at the gay bar tomorrow.
Gaybar what, your dad is at that bar with your uncle and cousins if you meet me there you'll be going to a family reunion and your uncle father will be there too.
Oliver Heaviside is the most underrated scientist ever. In school they teach us about Galvano, Ampere, Tesla and so on, but never Heaviside.
Oliver Heaviside was an autodidact (self-taught) mathematician and physicist. He coined all the terms used in AC circuit analysis, he invented vector calculus and his work changed telecommunications.
Fun fact: since he wasnt formally educated, he was in conflict with the scientific establishment his whole life
That's hardly a "fun" fact.
@@stuckonearth4967 It's not just Heavyside. Elon Musk naming his company Tesla may be the only reason we know that name. The masters tried to sweep him under the rug and discredit him too. The crime is not being self taught it's anything that redistributes power or wealth from the masters. This goes back to ancient times and the story of Prometheus who stole fire from the Gods in 500 BC. Zeues crucified him to rock and had an eagle eat out his liver, which would regenerate so Prometheus could be tortured again the next day at infinitum. The moral of the story is when you discover something and don't bring the current powers that be with you unveil it the power you unleash may become so imbalanced that it lashes out against you. So unfortunately advancements will probably have to include big oil and the most polluting companies or they may react so sharply against that new scientist, that he will join Heavyside, Tesla, and Prometheus.
@@stuckonearth4967 elon musk fan bois never fail to embarass themselves.
Passing some neutralizing material between magnetic force, impossible?
Am doing but electricity and am still to write ordinary level
i love that you always explain words . it really removes misunderstanding.
This is very necessary in science. In very glad he does that
Yes Azis, V-allah
Your absolutely correct
@@lordhapuokami5488 there is an option to translate your comment to English. The funny thing is that is says the exact same thing.
He is really an ace by that aspect.
Your videos should be mandatory in school as an introduction to a new subject, they usually make it SO much easier to understand a course. Many teachers know the subject, but they can't teach it. Your videos are usually "reference level" in both cases...
AGREED!
Already our teacher had this idea but the principle again ....... I know principle in an Indian shools😤😤😤😨😨😨🙍🙍🙍🙍🙍👈👈👈👈
OMG
Couldn't agree more
nice
This has to be in the top 5 channels on youtube. Incredible explanations and hysterical commentary. I think I've laughed to tears at least three times watching this channel.
This is amazing! I'm studying EE, so I've already read about electromagnetism. This series of videos help me understand the concepts.
This channel is great for easily explaining & visualizing complex topics/concepts. It’s my new goto for everything science related.
I jumped on this as fast as I could and you already had 230 views and 38 likes. Keep this up dude, you not only matter so much to me as someone that was screwed out of a proper formal education in the sciences, but I pass this stuff to my (at the moment:) 9yo nephew and use it to explain things ostensibly "beyond" his ken. You're making a huge fucking difference, man, keep going, even though it won't be immediately visible. You're not just making my 30yo ass smarter, but I use your material to encourage kids I know. KEEP THIS UP, and I'll be supporting you via patreon in a few weeks (sorry, I'm poor :C)
Thanks!
FastFast
Showering wealth on society by distributing good info👌
I think the important thing that people often miss is that when current in drawn from the voltage source (so power), a torque is created so that it impedes the rotation. So we don't only have to make spin the rotor "once" to give it momentum, but apply a constant power at least as much as the drawn electric power.
Yes, this is very important.
I don't think anyone misses that. If you could spin a rotor with one push and it ran forever and ever having a perpetual motion machine there would be no issues regarding power or the climate. Perpetual motion machines aren't even really pursued anymore except as TH-cam click bait. All the solutions for clean renewable energy have been invented. Will we have the resolve to implement them or will we go down in history as the monsters that set in motion the destruction of all life on Earth. Knowing full well it was happening and how to stop it, but did nothing.
@@anthonypape6862 Your'e in the good side but trust me, almost 99% non tech would imagine that it might be possible to retrieve more energy (and especially because they don't really feel what "torque" is but only speed).
I have a vid with exactly this point explained, it has +2M views, and it's not sufficient to convince everyone!
@@ScienceAsylum how is the valence of the conductive metal refilled after electricity flows though it? i realize it they are lost and contributed one to another in a flow of electrons down a wire but somethings has to refill the valence shell electron in the original atoms that was lost. Anyone know??
@@Acuraintegraman1 It doesn't _need_ to be refilled because it's a closed circuit. Imagine a closed pipe system where water never leaves. Do you need to refill it with water?
I wish I had discovered this channel years ago! Absolutely profound insight along with an impactful delivery that makes us viewers engaged! WELL DONE SIR!
I wish I had a chance to watch these videos when I was a kid... After decades and all technical studies, watching your videos is priceless.
Best explanation of what voltage is... ever. I finally understand it. Thanx.
The Missy Elliot reference was epic! Possibly your funniest antic Nick.
I'm glad someone else caught that
XD
I love how clear this video is. It's super easy to follow. Shared, liked, and subscribed.
Valuable video. Explained the meaning of the equation for Faraday's Law. This stands out in another level of explanation!
Thank you, your video explained it really well, i love how you made it clear that magnetic induction/spinning coils around is the actual source of energy. I was really confused trying to understand how Nuclear Powerplants work
3:30 It's also worth to mention that when there is something connected drawing current from the generator, it gets harder to spin (I guess you'll cover Lenz's Law in a future video). That's why infinity energy generators don't work.
When there's no current flowing, all the force you apply is turn into motion, and since nothing is consuming energy, the coil would continue to rotate indefinitely, if there was no losses due to friction and drag. However when something is connected, creating an electrical circuit, part of the kinectic energy of the coil is turned into electrical energy. Thus if the torque applied is constant, the angular speed of the coil will reduce, or conversely, to make the speed constant, a higher torque is needed.
This a good point and something that might be worth doing a solo video on. I remember we did experiments like this in physics class. Let a pendulum swing through a magnetic field and it swings normally. Replace the head of the pendulum with something conductive like copper and the pendulum swinging stops really quickly, the breaking action is really evident. What's going on is that the magnetic field induces a current within the copper, little electrical loops. Because this takes energy, the energy has to come from the motion of the pendulum. Hence the pendulum stops moving very quickly because those current loops are actually using up a lot of energy.
The point of the lesson was the same as yours: perpetual motion energy-making machines don't work. That energy really has to come from somewhere, and there ain't no free lunch.
Indeed!
@urmthrwan The coil itself has some intrinsic resistance, so it would dissipate heat over time.
@urmthrwan Yes, in theory it would be possible if you also eliminate the mechanical losses (friction and drag). It makes sense considering that the power is given by the product of the voltage across a device by the current passing through it: P = V x I.
Usually, the power is zero if there's no load, meaning there's no current regardless of the voltage generated. In this setup though, there would be no power dissipated because there would be no voltage drop between the ends of the coil, regardless of the current passing through it, so the power equation becomes zero too.
I don't see any practical application of this kind of generator though.
Power Management.
Essential viewing for students wanting to get into these subjects. Great explanations..
I am master in Electric engineering and still enjoyed every minute of this video. I guess I just like the topic and you explaining :D
Fty
Becouse he humanizes physics with his crazy delicious - face 😊
Really amazing to see how the causality works in the situations at the very fundamental level.
Great video!
Nice refresher video here! Been a while since I'd visited these concepts. Look forward to more.
Pushing a wire side ways in a magnectic field should cause current, brilliant and very clearly explained. Now I know exactly how the relationship between current and magnetism works, great video...
Didn't expect a video so quicly after the last one.
I’m in EE right now, and I would love if you made a video on the relativistic explanation of electrodynamics. Love your videos btw !
I love everything about this and actually learned things that shifted my perspective. :)
Have to be honest, first time watching one of your videos I felt like they was meant to be just for kids, but now I really enjoy each one of them. They are explained so well, in such details without all that misleadings examples that are used to supposedly help us understand.
I hope you keep doing it for a long time and I expect to be one of your patreons soon. I think I may help you with spanish subtitles so I could recommend this channel to more people.
Thanks for your work!
Thanks! I try to put something for everyone in my videos :-)
I'm taking physics, and I'm going to ask my teacher if we can watch your videos. He use to be a professor.
You really simplified the concept for me. I was so confused in class and didn't really get the concept. Thank you
Hello!
In the experiment that you showed later on in this video (5:10) When you connect the coil to the battery, doesn't it become a solenoid? And so, why doesn't it get attracted to the magnet when it is spun, causing it to stop spinning.
You're videos are great! Thanks to you, I decided to study physics
0:42 I was almost sure he was about to say "Or is it??"
Awesome video! I learned a lot (as usual). Please keep making videos
As always great explanation with simple examples thanks!!
Video title: “Turning magnetism into electricity”
*_Michael Faraday is typing_*
Will you be doing a video on the electroweak force?
Electroweak? Eventually maybe (probably).
@@ScienceAsylum, probably not enough content for 7 shows. Then we could have 'Electro-week'... (sorry)
Free electricity !!
Toasters : /* It's Free Real Estate */
@@krishabm1... I think you have to run a magnet through a coil. I don't think it works with bread you want to toast. I am hungry, I will try it and I'll let you know if using my toaster reduces my electricity bill.
I just hope TH-cam recommends your videos like it does for other physic channels as I believe you should have over a million subscribers already. Thanks for the videos nevertheless. You are awesome
Your comment is turning out to be true. Haha ! 3 years later, Nick has more than 50 Million views on TH-cam ...
Finally someone that makes this clear and simple! Thank you mate, keep on going, your channel is amazing!
6:20 We don't always turn coils. Usually the coils are fixed to the stator and the rotor has DC excitation to cause the change in magnetic flux but the same thing really
This Heavyside guy might be the most cruel victim of history I’ve heard. Tesla empathizes
For real though... (Neither one of them had very good "people skills" so it makes sense, but still cruel.)
The Science Asylum well Newton didn’t have good people skills either. I wonder how much luck it takes and how much marketing for your ideas to be appreciated by the community.
Very very very underrated channel
I love your energy and excitement about these concepts. Keep it up. You're doing a fantastic job. Stay frosty.
One of your best video! Congratulations.
Electricity may be man`s greatest discovery to date. The ways in which we use it now makes it difficult to think how we would have to live without it.
That's what Steampunk is all about. It's an alternate history fiction that explores what our modern world would look like, if electricity were never discovered.
“ To the time line!!” ;) Another rather rather g o o d piece of edutainment. It’s the balance of competence and humor that we , your fan community are unable to resist.
This is one of the best explanations on the subject I have watched!
Dope video man, keep up the good work!
Thanks!
Saw the notification clicked on this video fastfast. Nice work
In calculus I always heard about the "Heaviside step function" and I honestly thought it was "heavy-side" like heavy vs light and had something to do with taking the value of 1 rather than 0 at 0 until I quite recently (but not today) learned there was a physicist named "Heaviside" who invented electromagnetism and vector calculus.
He's so underappreciated! It just goes to show where _bad_ social skills will take you in life.
Taylor Polynomials is another interesting coincidence where the mathematician's name describes the concept he contributed to mathematics. A Taylor polynomial is tailored to match the function.
Thank you for helping me better understand that Dr. Stone episode
Omg, i am almost tearing..
It was hard for me to get a full understanding of the magnetic induction for 2 months.. And u just simplified everything for me in less than 7 minutes.. Thank you so much ❤️❤️
Glad I could help! 🤓
"WORK IT! I need a glass of water..." 🤣😂👌
0:41
Nick: _You know what I'm thinking and I know what you're thinking._ *"To the timeline!"*
Edison Tesla electr8city war
Nice to have so many visuals to help with conceptualising. :)
Great video. A real treat. Thank you.
I was curious as to how electricity made stuff work, now I'm watching this at 4 am, learned a lot though
Then this one is going to blow your mind: th-cam.com/video/C7tQJ42nGno/w-d-xo.html
Bless you so much for continuing to spread knowledge 🤘🏼
Jesus is lord😇!
Great video. You should have also covered the sources of magnetism in the various practical power generation cases (e.g. electromagnets, permanent magnets, hybrid setup etc.)
Great video! Just subscribed!!
Wouldn't the induction at 5:34 be the greatest when the coil is perpendicular to the ground since it's cutting more of the "magnetic lines"??
Thanks
The induction would be the greatest whenever the _change_ is biggest. If I could spin the coil more steadily, I would expect that to occur 90 degrees later than when the field through the coil is maximum.......... so, in an ideal world, yes, you are correct.
Hello crazy.your videos are best
Best yt channel for education
But sadly underrated
This channel deserves million subscribers
sadly it seems education is underrated
Happy to learn ways to approach physics problem.....I love ur way of articulating physics .......
...it's really a blessing to have utubers like u .....👍👍
Great to include the Faraday equation, brings back some memories from school 31 years ago
How long does it take you to upload please more
I upload twice per month. It's best I can do. These videos take forever.
@@ScienceAsylum thanks for the amazing content
you deserve more, your videos are interesting and easy to understand!, especially for beginners like me =]].
Out of all instruction videos I've watched and there's a lots you make the most easy to understand thank you
Great video!!!!! Keep them coming!!
I'm like question clone. Pointing out the details. Curious.... Lol
0:42 “you know what’s coming”
I watched this video with no sound and captions.... Nick’s voice resonated in my mind all long the video, even the sound effects... it’s crazy!!!
A question
When electron makes jump between energy level,, is it possible that jumping electron is just displacing the photons that were already in electron pocket or hole?
Pls can u make a video explaining what voltage actually is ?!?!?! 🤔🤔🤔
Voltage is actually the potential for charges like electrons in the electric field. A potential is always the difference of energy of the particle at a point compared to the energy at a reference point diveded by the charge itself. So if you multiply the voltage (or the potential) at a point by a charge you get its energy at this point. Or in other words the higher the voltage, the higher is the energy of charge at that voltage.
By energy i mean the potential energy und note that you dont always divide by the charge. For example there is also a potential for the gravitational field which is the difference of potential energy divided by the mass. So in general the potential of a force field in physics is the potential energy divided by the quantity which causes the force. The cause of the force in the electric field is the charge.
Almir Zeqiri fgfgsh
I started my iPad, and your video started on its own...
Your clone must’ve pushed play...
Thank you, pushing clone.
Your videos are fantastic, Nick! It is amazing how you can make difficult concepts understandable in such a concise manner. I have a question on electromagnetic forces -- is the Lorentz force the "only" electromagnetic force present on charged particles? In other words, can the interaction between two permanent magnets be described as a Lorentz force?
Great video, as always. Thank you !
Glad you enjoyed it! 🤓
Yes more "to the time line!" haha
i understood great
Me too. Me now know good.
Lovely Video explains everything sooooo simply
Genius, speaking that fast, rather speeding up the speech. Our superb minds discern the message even thru the sillinous at the right speed. Thank you
TIL: Most power plants are just a very very large water boiler.
Fact.
one crazy question nick ! imagine if we isolate a black hole ....and start "feeding" ELECTRON ONLY. what will happen if we continue to feed..also consider that black hole also SPIN. will it produce magnetic field also?
Black Holes do have magnetic fields
If they have a charge 👆
@@Private_Duck
If they have mostly electrons, they do have a charge.
I believe it should be plausible. However, getting a black hole charged to the extent that it produces a magnetic field great enough to be used from the distances we can reach would require an immense quantity of charged particles to be sent within it. Nonetheless, as had been said above, they already do have a significant magnetic field.
Yep.
By the way i forgot to add my answer.
If you threw electrons into a accretion (sorry if spellings arent correct) disk, then those electrons will produce a strong magnetic field.
But for a blackhole to have a magnetic field, it must have a charge.schwarzschild bhs and uncharged kerr blackholes wouldnt do that.
Great videos , very useful for whoever wants to learn very important basics
Hi - Interesting video. I've tried a number of techniques to test and prove the theories mentioned for credit purpose. Tell me as all my tests have been unsuccessful, is there a specific type / strength of Magnet that needs to be used to generate electrical energy.?
I wish you were my school teacher
1:31 they look so cute from the side view 🤗
Anyone agree?
The clones are the best
You make science interesting in a way that would have taught me a LOT more in the science classes I was FORCED to take... and for a LOT less money. Being crazy is part of it... all the BEST people are, you know :))
Really great video. I watched it twice and still dont't get all the concepts which have been shown. What are these dots (out of screen) and crosses (into screen)?
It's the magnetic field. We're several videos into a series on electrodynamics. I explained those symbols here: th-cam.com/video/XczMRsiq9mk/w-d-xo.html (Also, there's a little box in the upper right hand corner explaining them in this video.)
Who’s here from Dr. Stone ?
great video just what i was waiting for.❤❤
I have a query regarding that : when current is moving in a coil the current moves in rotation in coil and translational as coil has many turns ,so does that mean it produces two components of magnetic field? and if not please explain above case.
Amazing as always!!
Honestly this cleard a lot up for me. Dont forget to like this vid yall my mans deserves it.
I'm just blown away by this. So simple, yet not taught in schools, or at least not in the way you did. Quality upload as usual! Thanks!
You're welcome!
Usually it's the magnet that spins, and not the coils. It's easier to extract power from stationary coils. The magnetic field can be created by a spinning coil, but it operates at a lower voltage which can be passed into the rotor by slip rings or a transformer
Hey Professor .
What is your view on Frauchiger-Renner paradox ?
Thanks man....this video was very useful
Thank you, this is what I wanted to know! I kept trying to look up how rotational energy is actually converted into electrical energy, but all the results and other TH-cam videos just kept skipping over the electromagnetism part! Y'know, the part that actually converts the mechanical energy to electric energy. This is such a fantastic video!
Glad it was helpful! 🤓
In order for magnetic induction to work the magnetic lines of force need to stretch , break then reconnect as they pass by a conductor . That's why it doesn't work when the magnetic lines of flux and the conductor are parallel to each other . If you connect headphones to a coil of wire and you wave a magnets pole across the coil of wire you can hear the lines of magnetic force breaking and reconnecting .
I love the pause, and the timeline XD perfect.
It's Tuesday March 26th 3:08 in the morning just finished watching your video good job on the explanation of magnets here in New York City learning thank you for posting this video I give this video a thumbs up👍
As always, amazing video.
Wonderful explanation! This channel is the Oliver Heaviside of TH-cam. On a positive note, the improved YT algorithm has actually provided me with something useful.
hi nick, in voltage step-up transformers, why the increase in voltage in the secondary doesnt linearly increase the current in the secondary?
Because you cannot create energy inside a transformer. All power induced in the secondary, must come from the primary. The equation Vpri*Ipri = Vsec*Isec, is a best case scenario equation that governs how secondary voltage and current relate to primary voltage and current. It is just like torque and rotational speed on a pair of interacting gears. One gear is driven at a high speed/low torque, the other gear drives with high torque/low speed.
Likewise, the same thing happens with a transformer, except with voltage and current parameters taking the place of speed and torque. A transformer is a way to get "electrical leverage" on transmission of electrical power across the long distance.