Magnetic Field of a Wire

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Күн бұрын

032 - Magnetic Field of a Wire
In this video Paul Andersen explains how current moving through a wire will generate a magnetic field tangent to the wire. As the current increases the magnetic field will increase and as the radius from the wire increase the magnitude of the field will decrease. When the current in parallel wires travels in the same direction the wires will experience a force pulling them together.
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Music Attribution
Title: String Theory
Artist: Herman Jolly
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All of the images are licensed under creative commons and public domain licensing:
File:Electromagnetism.png, n.d. commons.wikimedia.org/wiki/Fil....
"File:Hans Christian Ørsted Som Ung.jpg." Wikipedia, the Free Encyclopedia. Accessed May 28, 2014. en.wikipedia.org/wiki/File:Han....
"File:Magnet0873.png." Wikipedia, the Free Encyclopedia. Accessed May 18, 2014. en.wikipedia.org/wiki/File:Mag....
"File:Oersted Experiment.png." Wikipedia, the Free Encyclopedia. Accessed May 28, 2014. en.wikipedia.org/wiki/File:Oer....
Jfmelero. Right Hand Rule Is a Physics Principle Applied to Electric Current Passing through a Straight Wire, Resulting in a Magnetic Field. The Thumb Points in the Direction of the Conventional Current (from Positive to Negative), and the Fingers in the Direction of the Magnetic Field., February 29, 2008. Own work. commons.wikimedia.org/wiki/Fil....
---. The Magnetic Field around Two Wires Carrying Current in Opposite Directions Cause the Wires to Feel a Mutual Repulsion., [object HTMLTableCellElement]. Own work. commons.wikimedia.org/wiki/Fil....
---. The Magnetic Field around Two Wires Carrying Current in the Same Direction, Cause the Wires to Feel a Mutual Attraction., February 28, 2008. Own work. commons.wikimedia.org/wiki/Fil....

Пікірлер: 289

@heartandeyes6390 3 жыл бұрын

watched you in 8th grade science classes, still learning from you as a sophomore in college. thanks for great vids!

@eduardomoreira7624 2 жыл бұрын

Same

@nathanieltalker6532 2 жыл бұрын

Does voltage in a wire effect the size of a magnetic or electrical field, thus effecting a parallel wire??

@ysff0710 2 жыл бұрын

@@nathanieltalker6532 it effects strength of magnetic field as current effects voltage and vice versa

@awesomeswordsman8231 Жыл бұрын

same

@nonameless2 4 жыл бұрын

this is my favorite science youtuber. everything always makes sense. Thank you, bozeman science

@markthompson8777 9 жыл бұрын

2 pi r is the circumference, not area

@pawanmishra9342 6 жыл бұрын

These are the first things which I noticed

@ChewVodka 6 жыл бұрын

before deriving it's area. He's not wrong, but in the video it shows 2piR so yes, in that case it's wrong. d(piR^2)/dr = 2piR

@LoneWolf-zj8it 5 жыл бұрын

what about all the correct things he said, can`t you maybe try to acknowledge that?

@guitarttimman 5 жыл бұрын

oh you beat me by 3 years LOL

@tlhomotsemoteme2423 5 жыл бұрын

lmfao

@Breyerlover4ever23 6 жыл бұрын

These videos are certainly some of the best explained science videos I've seen, keep it up. :-)

@michaelxiao8494 5 жыл бұрын

Wow, you're videos are really good. I've always been searching for these type of videos with such excellent teaching.

@rs8168 6 жыл бұрын

Thank you, you saved me!! The diagrams are very helpful to understand the directions of forces for parallel wires

@grantgupton3369 8 жыл бұрын

Hi! Just saying you are a great teacher! I love learning from you! Specific and interesting to watch!

@Thedeadbeetsband Жыл бұрын

You did great! I loved your visuals. I am 33 trying to figure where I am getting him from in my music studio. This helped me tremendously. Now it’s time to experiment and find how and why

@sandervdcp3513 3 жыл бұрын

Bozeman you are helping me big time!!! Thank you!!!

@tortreks 6 жыл бұрын

I love how you included the history of the discovery! It helps for some reason... :)

@zezozezon8291 6 жыл бұрын

That's called the hook, grabbing students attention, making it interesting, making sense of why it is useful. People who have background in teaching and read education/teaching methods books know about this. This is why I like Mr. Anderson's videos so much. I dont just learn how to do it, but I also lean how and why it is useful ( :

@zaibchohan9134 7 жыл бұрын

you're great teacher never seen before.. keep it up

@pinco_pallo 6 жыл бұрын

Thank you very much. I couldn't find videos like this on KZfaq Italy. 😊👍🏻

@zwhitchcox 6 жыл бұрын

Thank you! no one else it seems went over the relationship between electricity and magnetism. Kind of an important detail.

@robertblack3867 3 жыл бұрын

Super, clear-cut video!

@yehiaelyamani6943 4 жыл бұрын

Brilliant media and explanation!

@billywilliam7747 4 жыл бұрын

it's a great explanation. Thanks Bozeman Science

@briantrek 10 жыл бұрын

hope u do a example for a coil next... will u be doing optics soon?

@ibchemvids 2 жыл бұрын

Cheers Paul, I gotta teach this tomorrow and it has been a while.

@kampiu9866 7 жыл бұрын

thanks a lot!!!! from 5:40-7:30 is excellent!

@dominikkovac8234 6 жыл бұрын

Amazing explanation sir. Cheers :)

@ssiddiqui7301 7 жыл бұрын

nice video and very thankful to understand about direction of feild but i have read that 2 pi r is the circumference of circle which is equal to length of conductor

@philllygirl215 8 жыл бұрын

Great explanation and use of graphics! Thank you so so much!!

@jameselliott9397 5 жыл бұрын

What is really needed is a video that shows the difference between wire sizes and number of turns on coils that would actually be used in motors and generators. With and without ferrite or steel cores. Driven as motor and non-driven as generator. Loosely and closely coupled. That would be very useful information to builders. I have a diagram I would like to share with you. Coils coupled in such a way that most people would think they would cancel each other out. However they do not.

@aliseyfikoyuncuoglu9977 4 жыл бұрын

You already speak English. Part of the image cannot be seen due to caption screening. But thank you very much for your work. It benefits.

@siddhantamondal2207 7 жыл бұрын

great video!!!!! made all my doubts clear!!!!

@AlyxGlide 5 ай бұрын

Mr. Andersen.. what a surprise, I'm learning!

@vanshikha7842 7 жыл бұрын

great explanation sir!!!!

@joannot6706 3 жыл бұрын

So I am in the middle of this video when I start hearing weird noises around my home here in France. apparently 2021 just happened ... anyway, resuming the video.

@rofiking 8 жыл бұрын

I guess there is a point that you haven't discussed in this video: when you move a magnet inside a coil that leads to generating current but will any magnetic field be experienced with that? or will it be electrical field? will that field be experienced within the coil only or outside it as well?

@zazkegirotron 7 жыл бұрын

great video, thanks :D

@ostanin_vadym Жыл бұрын

Thanks for the content

@V_Electronics 3 ай бұрын

you're an amazing teacher thanks!

@songs-pu9bq 6 жыл бұрын

Absolutely magnificent sir

@peace572 4 жыл бұрын

That was really helpful thank you soooooooo much for that God bless you❤️❤️

@lanasexton9937 2 жыл бұрын

It has taken my professor 10 hours (5-2 hour classes) to explain what he has explained in 3 videos averaging 8 minutes each. 24 freaking minutes!

@gensyed 5 жыл бұрын

Thanks for stating conventional current convention. What happens if a single AC carrying wire is in the form of coil and magnets are passed across the coil, does it affect the current flow in the coiled wire?

@chocolatehai 2 жыл бұрын

Why all of these great teachers are on KZfaq 🥺 thank you ❣️ Sir

@264aub 6 жыл бұрын

Thanks so much! I like your enthusiasm!

@muhammadnazhansyahmi4982 5 жыл бұрын

Thank you , easy to understand

@test-tr3yl 6 жыл бұрын

Great lecture. Just thinking if you represent 1 to 4 fingers as such to demonstrate greater or lesser field strength, ie AMPERAGE. Overall to be excluded from using you pointer finger to demonstrate direction of FORCE

@budakcomel29 4 жыл бұрын

Thank you for helping me!

@shibiumesh8139 8 жыл бұрын

thank u i learned a lot

@anubispt6002 6 жыл бұрын

it helped a lot. Thanks!

@toruayase860 8 жыл бұрын

Thank you sir

@rtanidean4931 5 жыл бұрын

Hi Professor. Could you please explain what a “Field” is? Also, Why is “Magnetic propulsion” not used in almost everything requiring inertia? Thx. D.

@supriya6302 5 ай бұрын

You're a G. I did not have a great understanding of the right hand rule, but now I do!

@Andrei-ds8qv 7 жыл бұрын

very helpful dude, ty!!

@alokranjanborah7397 5 жыл бұрын

Good explanation.. Why direction of current is taken as opposite of direction of electron flow ?

@AMANKUMAR-un6pg 5 жыл бұрын

May you upload video on magnetic field direction in wire due to ac source(with animation video)

@allaboutjugad2384 6 жыл бұрын

Awesome man just awesome ...

@alphainfinitycr6225 7 жыл бұрын

awesome sir helped a lot

@Arianbazyani 4 жыл бұрын

Great vid, thanks

@basiliasTG 8 жыл бұрын

Thanks Doctor!

@tabasummulla8722 5 жыл бұрын

thank u so much for the video

@JamesEdwardTracy Жыл бұрын

This is a great primer for the benzyl which was the experimental device described by project omicron, gravity control research. The only difference is the conductor is spun along its length, and at least four are arranged in a box configuration. This experiment hasn't been completed as yet and I hope somebody will one day give it a try.

@kimwimisum511 8 жыл бұрын

Thank you Sir!

@Moshitachi 5 жыл бұрын

Mr Anderson, to tell the direction of force acting on the blue wire due to the magnetic field of the green wire, we should use Flemming Left Hand Rule.

@zynthos9 7 жыл бұрын

So if you have a wire with current running through it theres an electric field around it. If you have just this setup, and no coil of wire around a nail or something like that to make what we usually call an electromagnet, can the magnetic fields just from the current in the wire itself be used to pick up paperclips etc?

@anthonymaestas7298 5 жыл бұрын

cool very helpful, didn't get the 2 pi r until just now, thanks!

@tobiasjaggi7908 4 жыл бұрын

It's not the area, it's the circumference.

@mykulpierce 6 жыл бұрын

Did you mean μR instead of μ0 ? Most relative permeability will be 1 in cases like copper and gold but is not the case with iron nickel and others. Is the equation using μ0 or μR? Major differences in values in material.

@weebfourg 3 жыл бұрын

bless your soul

@serinmarypr7198 10 жыл бұрын

please explain the magnetic field due to a solenoid as well as a toroid

@renatao6330 6 жыл бұрын

Very helpful.

@steliosbazigos3619 Жыл бұрын

OMG!!!!!!! That was amazing!!!!!!!

@mimimontstar 5 жыл бұрын

do you have a video for magnetic field of a current loop?

@snmcdonald 5 жыл бұрын

Right hand rule = conventional current flow Left hand rule = electron current flow

@KatherinePierce_81 5 жыл бұрын

Shouldn’t he use the left hand rule

@c_i_i510 5 жыл бұрын

@@KatherinePierce_81 no ... because he is talking about the conventional current (which is actually the flow of positive charges)

@KatherinePierce_81 5 жыл бұрын

C_I_I thanks

@marcusroth4272 3 жыл бұрын

@@c_i_i510 right hand rule is for induction, left hand for motoric effect

@donger0 8 жыл бұрын

thank you so much....

@pammitakumari4064 5 жыл бұрын

Explanation is marvellous..but circumference of circle is 2 pie r not the area..

@sidamarali3030 4 жыл бұрын

Thank a lot sir.

@Ben-my1tk 5 жыл бұрын

very very thank you

@s.jackson858 2 жыл бұрын

Great videos. I'm planning on studying Physics and Chemistry in a few weeks. Do you have any suggestions or recommend any Physics textbooks?

@baltazarkun 2 жыл бұрын

hope it worked out

@jaydevpandey9877 4 жыл бұрын

Thanks now i understood it clearly

@LoayVlogging 9 жыл бұрын

YOU ARE THE BEST

@kevinfrancetti9088 10 жыл бұрын

Isn't the magnetic field a relativistic effect of moving charges ? ( I have read this explanation somewhere ). If yes could you explain (with the relativistic effect) why the "polarity" of a wire change when te current change direction ? Thx :) and sorry for my english xD

@AbhayArsekar 5 жыл бұрын

Thank you so much

@voltairer.2919 Жыл бұрын

Superb. Superb. Superb.

@mikecamps7226 2 жыл бұрын

Very interesting presentation......takes me back to school. One thing I have a concern over is the general statement of "wire"....as it would be generally assumed to be a copper wire......BUT as a point of distinction Copper is not magnetic as not being ferrous.......BUT BUT BUT what if the wire happened to be a ferrous alloy....and the magnetic field. How would the ferrous magnetic property of such a wire act and affect the magnetic field ??? The point is to contrast ferrous VS non-ferrous in terms of the conductor IE "wire" in the performance and effect of the magnetic field being created.....and how that would influence applications in Electronics

@JD-fq2cs 8 жыл бұрын

Great video, but there's one thing: I'm pretty sure that mue-naught is 4(pi)*10^(-7)

@IvanBroes 5 жыл бұрын

OK, a lot of research is available for the norm, which is North to South pull or repellent magnetic field. but, what happen to the magnetic fields with an unconventional series of magnet forced in position with a North-to-North onto the next a South-to-south so forth ten folds -- Q: Does one create a one greater magnetic field around the unit?

@clifftrainor6774 8 жыл бұрын

4:42 - I see in the picture that the electrons are flowing from positive to negative. Is the image using conventional current flow as an example? I was always taught electrons go from negative to positive.

@anno.7465 8 жыл бұрын

+Cliff Trainor - As Mr. Andersen's mentioned, it's the conventional current - the old fashioned view of moving protons originating in 1750 - that flows from positive terminal to negative terminal. Since the diagram looked archaic, it makes sense that the picture would have depicted conventional current rather than the current about which you were taught: electron flow from negative to positive terminals (the discovery of electrons was in 1897).

@miajohansson3473 6 жыл бұрын

thank you!!

@marcusroth4272 3 жыл бұрын

The left hand rule should be implied? because there is no induction in the blue wire..there is current going in the both wire at the same time?

@jerrycloud8994 8 жыл бұрын

hi , i wanted to ask why is it actually important to know the direction of the magnetic field ?

@smawzyv9281 7 жыл бұрын

If you have two vortices of water next to each other spinning in the same direction, will they come together like two magnetic fields spinning in the same direction?

@peace572 4 жыл бұрын

Thx following u from Iraq❤️

@nikhilyadav1455 6 жыл бұрын

Can someone tell me why the blue wire posed a Downward magnetic field on green wire as both have same direction of current and magnetic field direction???

@BlackMambaKO 6 жыл бұрын

Why is at 4:00 current going up but somehow magnetic field is pointed to the right? Kinda can't apply right hand rule here?

@krishnanunnib4546 5 жыл бұрын

What will happen to a compass placed on the centre of these parallel wires both in same and opposite directions.?

@agrowforaadmin7706 6 жыл бұрын

Thank you good sir

@drakethomas652 5 жыл бұрын

So does the magnetic field get stronger / intenser with amps or with volts? And is it better to AC or DC if you want a stronger magnetic field?

@digitalsiler 2 жыл бұрын

amps = I

@salimkibwana2050 7 жыл бұрын

nice one

@nathanieltalker6532 2 жыл бұрын

Does voltage in a wire effect the size of a magnetic or electrical field, thus effecting a parallel wire??

@williamlanger9229 3 жыл бұрын

Just a question. I'm assuming you mean that the greater the radius, the last magnitude the field will have, correct? The way it's worded sounds like thefurther reaching the magnetic field is, do you less magnitude it has. I'm a total noob so that confuses me and makes no sense lol. But because it doesn't make sense to me, means it's probably the right answer LOL

@mohammedissam3651 2 жыл бұрын

Which stronger magnetic field is with high current or high voltage both same turns and same diameter?

@keyofawesomefan 8 жыл бұрын

Hi Bozeman! Great video! However, your description is misleading. You explain the magnetic field generated by current, but you don't explain HOW the magnetic field is generated by current, which has to do with relativity.

@JsCing 8 жыл бұрын

+keyofawesomefan That's why it's called AP physic. You only learnt that concept at college physic 2.

@keyofawesomefan 8 жыл бұрын

+Js Cing lol i watched this video for help on a college physics 2 exam. what's wrong with making videos for people taking a class they care about, as opposed to making videos for kids taking a class so they can get into college? p.s. your arrogant comment is unnecessary, my arrogant comment is only in response to yours. sit down.

@JsCing 8 жыл бұрын

keyofawesomefan nothing wrong! Just saying he's not gonna cover college physic stuff in detail!