Magnetic Permeability

020 - Magnetic Permeability

In this video Paul Andersen explains how the magnetic permeability is the ability of a material to form internal magnetic fields. The magnetic permeability of free space is a constant and is much lower than the magnetic permeability of magnetics.

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Music Attribution
Title: String Theory
Artist: Herman Jolly

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[JohnTaylor-mxzt]

I've been a degreed Electrical Engineer for 6 years. This is an excellent video and really helped me refresh on some topics that I haven't seen in a while (and don't think I understood in college). Thanks for the great content

[gogreen]

i love bozeman science.always easy to understand.

[monon_rahman.]

The videos are short yet easily understandable... Thanks for this...

[accretionstudios]

I like the way you explain this. It's the big picture that gives an intuitive understanding of what his happening. I usually need an intuitive understanding of almost anything before I can really make use of it. Thanks.

[treasuretotrash]

You know when your doing a good job explaining something this complicated when a 14 year old can understand. Thanks so much for making this!

[TimJinkerson]

Thank you. I'm studying for my radio exams, and this is really helpful.

[dr.krishnamurthyramanujam]

Wonderful. Don't know how to say thanks. No words. Really superb. Please add more video related to electromagnetisms, electromagnetic waves and ANTENNA

[Thor]

Cheers buddy, studying for my exam in electronics in aircraft engineering and just could not get my head around permeability for some reason. Now I can, thanks alot!

[filmwedajtubee]

i am always satisfied with these videos thanks

[tanishkaojha]

I am from class10 but it is too easy to understand certain things from the teachers like you.

[alfonzohuerta]

Very good explanation, is easy to understand with the video. Congratulations

[josepeixoto]

iron is everywherev else i see 4000; man, this IS confusing...

[ProgrammerAsif]

9 years old video. But it feels like a new one

[MorganCapsule]

Very nice illustrative video. Thumbs up!!

[alexnoggle]

This video was exactly what I needed! Thank you!

[alwaysdisputin]

This video is well explained & clear. TY.

Maxwell found the speed of light squared = 1 divided by
magnetic permeability x electrical permittivity

So notice how speed of light is inversely proportional to the magnetic permeability
Therefore the reason the speed of light is so fast is because the magnetic permeability of air (& also: outer space) is small
Or in other words: c is big because in air, magnetic field lines are straight (not bent like with iron)

Moreover Einstein said E = mc²
& c² is huge therefore in every bit of mass there is a vast amount of energy. This is why nukes are powerful. But c² is huge because the permeability of free space is small. Therefore nukes are powerful partly because the magnetic field lines are straight in air

[kiriup]

Really helpful video. I have a question though. I read that "The key difference between magnetic permeability and magnetic susceptibility is that magnetic permeability describes the ability of a material to support the formation of a magnetic field inside itself (as mentioned in this video), whereas susceptibility describes whether a material is attracted to a magnetic field or is repelled from it."

Does this mean that materials that support the formation of a magnetic field inside themselves are not necessarily attracted or repelled to the magnetic field?

Are there materials that have HIGH magnetic permeability with LOW magnetic susceptibility??

[OMNI_INFINITY]

Thanks! Still one of the best science channels on youtube! On that toroidal winding where are the poles of that electromagnet? Are the open sides basically similar to the sides (not the ends) of an NS bar magnet?

[merwinpinto]

thanks a lot i have subscribed i love your lecture it sounds like a picture in a theatre

[masudraihan]

thank you, sir.Go ahead and make such kind of awesome tutorial videos. best wishes