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

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

[inquisitiverakib]

this video deserves more than 100k thumbs up.

[palak]

Paused the video to thank 🙇. Gratitude was overflowing .

[sarakafka]

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.

[pharaoh]

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

[.]

you are awesome
And I love ur voice too

[ArduinoTamiza]

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

[fighterszonetamil]

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

[onlyneet]

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

[RugsRabbit]

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

[anushkavora]

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

[bradhammond]

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

[shiwamkarn]

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

[abu_staif]

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

[JamesKellyJohnson]

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

[dalenassar]

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

[nandukrishna]

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

[sujithc.s.s.]

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

[purnimadeymukherjee]

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

[_Channeltowatch]

very nicely explaind sir, thanks a lot.

[xavierhood]

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