Magnetic dipoles & dipole moment | Moving charges & magnetism | Physics

Magnetic dipoles & dipole moment | Moving charges & magnetism | Physics | Khan Academy

Рет қаралды 109,451

Күн бұрын

A tiny current loop act's as a tiny magnet technically called a magnetic dipole. The strength of that tiny magnet, the magnetic dipole moment m, is given by m = NIA, giving the units - Ampere meter square. The magnetic dipole moment is a vector quantity and its direction is given by the right-hand thumb rule. Magnetic dipoles are different than electric dipoles in that, there are no magnetic monopoles, only dipoles.
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Created by Mahesh Shenoy

Пікірлер: 105

@inquisitiverakib5844 3 жыл бұрын

this video deserves more than 100k thumbs up.

@Miki-bm1ux 3 ай бұрын

and millions more

@DipakPaul-hu6ry 2 ай бұрын

Also ur channel deserves some like bro

@4pharaoh 11 ай бұрын

You had me at "...It feels good to say that... go ahead say it..."

@palak6981 3 жыл бұрын

Paused the video to thank 🙇. Gratitude was overflowing .

@furiousarpan7473 2 жыл бұрын

Soooo trueee😭😭

@12.354 3 жыл бұрын

you are awesome And I love ur voice too

@fighterszonetamil6538 3 жыл бұрын

When I am bored while studying I watch your videos ☺️☺️

@NaN_000 5 ай бұрын

Same

@ArduinoTamiza 3 жыл бұрын

thank you khan academy....you have helped me a lot

@sarakafka6737 2 жыл бұрын

Bro, your videos are straight fire. this one and the one on cyclotrons are all anyone could ask for when being taught concepts. Thank you for teaching this and taking the time to explain concepts and big picture.

@bandanasuar9598 3 жыл бұрын

Whooo......This guy is unbelievable 😮😮😮😮😮😮

@RugsRabbit 3 жыл бұрын

thank you indian surrogate teacher for saving me again from my american classroom jai hind

@onlyneet19 Жыл бұрын

everyone gave the quantative definition of magnetic dipoles but u made me feel the concept. thanks a lot

@nousin4512 2 жыл бұрын

This is some phenomenal teaching.

@freaks5973 3 жыл бұрын

Love the u go through the concepts and get every detail

@charan2902 3 жыл бұрын

Awesome lectures and lecturers 👌

@aritrabhattacharyya2374 Жыл бұрын

What fantastic , marvellous, full of knowledge video... I'm running out of words love the way of your teaching and make us think differently ❤️❤️❤️❤️❤️❤️

@bradhammond923 Жыл бұрын

Brilliant explainer. I'm pretty new to magnetism (for a project) and this helped out a lot. Thank you

@ChauhanAshish001 3 жыл бұрын

Beautifully explained

@b_vishwajeet8096 3 жыл бұрын

Perfect explanation 👌😉

@delorean1278 2 жыл бұрын

YOU ARE A GODSEND! Thank you

@trumpeteerTralala 2 жыл бұрын

wow! thanks! love your videos!

@shiwamkarn5215 3 жыл бұрын

sir plz plz plz make video on how that expression of magnetic dipole moment came

@dilipmahalingam 3 жыл бұрын

Thank you so much sir..

@abu_staif Ай бұрын

Wow. The only good video I found on this topic. And it is a REALLY good one!

@gautammure 2 жыл бұрын

Excellent!

@THORGod_of_Thunder Жыл бұрын

Great explanation 👍👍👍

@Vaishnavi__555 2 жыл бұрын

Love your explanation

@xueyichee229 3 жыл бұрын

Excellent graphics!

@JamesKellyJohnson5 29 күн бұрын

Wow. There is a lot packed into this video, and you present the information in a very understandable manner. Great job.

@d9e240 Жыл бұрын

My friend! Thank you so much!!!

@johnyesudasan5029 3 жыл бұрын

Well explained...

@user-we1gf5hc4n 11 ай бұрын

fantastic video!

@anushkavora7815 3 ай бұрын

sir your passion for physics envigours mine everytime I watch one of your video! THANK YOU FOR YOU EXPERTISE!

@susanlinus8577 2 жыл бұрын

Superb explanation .

@ZahraShah-zr2ls Жыл бұрын

great, thanks

@_Channeltowatch 5 ай бұрын

very nicely explaind sir, thanks a lot.

@purnimadeymukherjee6933 5 ай бұрын

Awesome lecture really...all doubt cleared...

@fatenadel2611 2 жыл бұрын

Thanks amazing

@Smmmile 2 жыл бұрын

Excellent Video.

@ronitbiswal2729 3 жыл бұрын

Thanks a lot

@priyasearcher 3 жыл бұрын

Killed it😎

@moratasa9741 3 жыл бұрын

please do more videos on Lenz's and faraday's laws🙏😇

@ak-vk6gl Жыл бұрын

thanks a lot it helped me to understand to concept very well

@hemalatha1322 3 жыл бұрын

Thankyou so much sir🙏😇

@nandukrishna8142 11 ай бұрын

For those who guys wanna know why everything are not magnetic: 1. The electrons occupying the orbital must me single (else they would cancel each other out) 2. Most objects we see are made up of many domains which may or may not consist of similar atoms which have dipoles. So the domains may cancel each other out unless they are also aligned. 3. The atoms in the domains must be aligned properly

@anitachoudhary5793 2 жыл бұрын

Amazing👍👍

@tassoyattung8132 3 жыл бұрын

U r awesome 😃

@alexalbert3026 3 жыл бұрын

i really like when you say 'magnetic dipole' instead of 'tiny magnet', you are greater than 6G thumbs up

@aashisinghal790 Жыл бұрын

Excellent 😮😀👍👍

@m.tanveer1896 18 күн бұрын

Nice explanation

@mjmeternal2696 Жыл бұрын

Thank you!!!

@arianas7866 2 жыл бұрын

THANK YOU SO MUCH

@hcross4222 3 жыл бұрын

Super💯

@sangeethag6708 2 жыл бұрын

Super good

@dalenassar9152 5 ай бұрын

Great video!! ...I did expect the UNITS, also, of the ELECTRIC dipole moment (or an explanation)...left things a little incomplete. THANKS MUCH!!!

@Animalkingdom.x Жыл бұрын

Good video

@manishjoshi2821 Жыл бұрын

Best ❤️

@sujithc.s.s.9714 10 ай бұрын

can you pls make a video of its derivation which you said you'll do it in a future video ?

@onlyshorts...1m970 2 жыл бұрын

Nothing to explain him except a single word "satisfied"

@tansi4924 2 жыл бұрын

great :3

@TheRealPixx 3 жыл бұрын

Why cant my professors be like you......

@anmoldhawan2671 2 жыл бұрын

This is concept and this is real physics where it is not a strain on the mind rather simple things as a 10 year old can learn , what to explain , in physical tems what the formula is try to speak and make it visualise us ,we no long need to remember every formula is boom we can just tell the formula right . Thx man , one suggestion just elaborate more on the formula like how A incr. The B as it more no. Of mag. Field line can pass through it , more current , more B , more turns more N ,little bit more elaborate and basic is better than any Netflix show and simpler.

@martindesposorio9805 2 жыл бұрын

If a current loop had a varying thickness of a circular wire (cross section is a circle through out the wire), would the area component for the magnetic dipole moment still be the same as a current loop with a non-varying thickness circular wire?

@aptiwari1979 5 күн бұрын

best video

@marinanjer4293 2 жыл бұрын

This guy should adopt my physics professor and teach him how to teach

@sonitomar4398 6 ай бұрын

❤❤❤

@thedevourerofgods1686 2 жыл бұрын

ive been beating around the bush with magnetism all day, needless to say this helped

@himanshumishra428 3 жыл бұрын

When will you upload next video

@tahsinn7863 16 күн бұрын

Floathead physics?!

@ubahprecious6151 7 күн бұрын

Why does the magnitude of the magnetic field not appear in this formular for magnetic moment.

@drishtidia6137 3 жыл бұрын

tqqqq

@Greg_Chase 9 ай бұрын

If you assume the Exchange Interaction is responsible for the magnetic field around a 'current-carrying' wire (the Exchange Interaction aligns electron spins to prevent a Coulomb force build-up between electrons pulled together by the charge separation (battery or power supply) attached to the 'current-carrying' wire) Nature always seeks a lowest-energy condition, a move towards a lowest-energy equilibrium. Since aligned electron spins increases distance between the electrons, the Exchange Interaction is enabling a reduction in the Coulomb force that the bunching-up of electrons in the wire can lead to. Alignment of electron spins does 3 things: 1) the 'like' magnetic poles of adjacent electrons are now aligned parallel - 'like' poles repel; electrons keep a distance from one another due to this 2) aligned electron spins was identified in the 1920s as the source for magnetic fields 3) so a magnetic field around the wire appears due to the aligned electron spins 'Drift velocity' - the astonishingly slow and random motion of conduction-band electrons - could not produce a coherent magnetic field (consistently polarized in the same direction as is the magnetic field around a wire). 'Drift velocity' puts the lie to what we were taught in college, that 'electric current is electron flow in the wire' .

@vinay-rd3hb 2 жыл бұрын

Why area matters in magnetic moment

@georgestanciu5466 Жыл бұрын

Very nice presentation: I was wondering what is in a magnetic line? how do the magnetic line form? from what?

@adivaaaaaa Жыл бұрын

Magnetic field lines are just imaginary lines to represent the magnetic field but magnetic field however is generated from the movement of charges

@Nobody-xp6ip 7 ай бұрын

The reason I think everything is not magnetic is because not every molecule has free unpaired electrons that spins around and creates a magnetic field. Thank you I understood well from this great video

@dreamylife830 Ай бұрын

Hello boss am from Pakistan Have u uploaded any video about Hall effect??? If yes then share it plz

@vaishsonwane4216 3 жыл бұрын

1st comment

@supportWCHS 3 жыл бұрын

see for example KZfaq Stern-Gerlach Experiment U2 07 03.

@preethi2802 Ай бұрын

Hey i got a doubt....as magnetic fields are formed due to dipoles and if we see in an atom level then electron spins in its own path making a current loop, okayyy but how do u say electrons act as a dipole....where is the current loop and how do we consider electron as a dipole(as electron is a monopole)

@xavierhood8165 7 ай бұрын

Sir we also define magentic dipole moment as pole strength*distance between them which is similar to electric dipole

@VinodPal-sv8kq 3 жыл бұрын

Hello Sir B.tech aerospace engineering in Cambridge university total fees please speak in youtube

@The_Engineer 2 жыл бұрын

I'm confused because I've heard of the magnetic field strength being referred to as B... and I know that m must not be the same because its formula is different, but its also referred to in this video as the tiny magnets "strength". How is this strength(m) different than the magnetic field strength(B)? Any clarifications would be greatly appreciated, and would help me a lot in getting to learn the subject.

@i__stand__with__palestine__ 2 жыл бұрын

Same 🥺

@architmishra015 2 жыл бұрын

Okay so here's what I've understood till now. B is use to refer magnetic flux density or magnetic induction with it's formula, B= Φ/A, where Φ is the magnetic line of forces and A is the area. So B or magnetic induction is kinda power of the magnet itself whereas m is use to denote the power of one pole, either north or south

@dellasduffy9445 2 жыл бұрын

I am being effected by waves through walls in unit home from technology being used what to do

@monibasharif4959 Жыл бұрын

awlawww❤

@mppgetech.8081 2 жыл бұрын

I think You should Join Physics Wallah. What a Amazing way of teaching!You deserve more views

@रोहित007 2 жыл бұрын

Sir please make lectures in hindi on khan academy India YT channel.

@sargamgandhi8273 Жыл бұрын

How can a electron starts revolving ...without putting battery ....

@ghostnotbedsheet Жыл бұрын

Are u talking about how electrons revolve around the nucleus of an atom?Then there's this thing called Bohr's atomic model

@ourtamilnadu9011 2 жыл бұрын

You said that electrons move from south to north pole ,indicating direction and u said forget about it just now.Buttt my mind doesn't hear ur words!!!!!!!!!🤯

@raviadarshrajpoot3013 3 жыл бұрын

This voice is of Ashish Ranjan Sir, an Ex-ISRO scientist

@sargamgandhi8273 Жыл бұрын

Can you reply...plzzz

@supportWCHS 3 жыл бұрын

Physicists are hopelessly confusing about 2D, 3D. Please explicitly state or picture whether the phenomena is 2D or 3D. Atoms are 3D but often pictured and portrayed 2D. Don't know in this lecture.

@bhavanabalaraman7359 Ай бұрын

Who else is a fan of Mahesh Shenoy ?🙋

@vivekgupta3692 Жыл бұрын

*_Summary Of The Video :-_* *Magnetic Dipole & Dipole Moment* * Current loop behave like a tiny bar magnet no matter what the shape of loop is. * Technically we use a term for tiny bar magnet known as *Magnetic Dipole* * The strength of the dipole is determined by the term *Magnetic Dipole Moment* * Magnetic Dipole Moment is a vector quantity * We can determine the direction of magnetic moment using our *Right Hand Rule* * If we clasp our right hand in such a way that our four finger represent direction of current then our thumb will showing the direction of magnetic moment.