Magnetic Field of a Wire

Iron filings are used to visualize the magnetic field generated by a wire.

[@kiebrownlee3292]

POV: your here becos ur teacher sent u a link on teams online school lol

[@millymints]

This is exactly how I came here

[@ll-ht7mb]

I am just curious that's why

[@thegreenhulk1300]

You're goddamn right

[@professorsimba2408]

Whattttt how did you knew

[@puvaaneswaranpathmanathan8111]

same imao

[@user-hh6nn2bb1i]

Imagine asking for pepper and getting iron filings

[@Code4MathVids]

drill a second hole and have the same source passing through a second wire nearby and see the interference of the fields. Kinda cool to look at!

[@electricandmagneticfields2314]

Good suggestion. Maybe this summer, when I have some time, I may try something like that.

[@abdeljalilpr2033]

If you have a powersupply ..do do same experience with changing ams and voltage and let us see how the field would look like.. :)

[@electricandmagneticfields2314]

That is just the way it is. An observation no different than like charges repelling. It is just what is observed in nature and then we come up with equations to explain the experimental observations.

[@JSuparman]

Thank You for Your Amazing KISS video (keep It Short & Simple).

[@electricandmagneticfields2314]

You are welcome!

[@payalchoudhary1639]

Thank you 😊😊.

[@rykowilson1923]

Great video! Would a magnet on one side of the wire pull the field to that side? Kind of like the moon pulling tides?

[@electricandmagneticfields2314]

Thanks! Yes introducing a permanent magnet would effect the iron filings. In this video you can see the effect of a permanent magnet on iron filings, kzbin.info/www/bejne/h5K9YZtta71pmpI

[@hiteshragotralive3833]

Thanks for the information

[@user-hh6nn2bb1i]

Online learning anyone?

[@reddysekharg461]

Wonderful

[@theguywhokills]

What is repulsing the filings before the power is turned on? Before the cut at 1:03 you can see the displacement of the iron filings around the wire.

[@electricandmagneticfields2314]

When I turn the power on, the magnetic field is strong enough to rotate the filings close to the wire. I have to then tap the plastic to get the filings further away to rotate.

[@SamEskildsen-it9wp]

The loops…. Is the other part of the loop / circle of wire outside the view of the camera? Or what is meant by loop? Thinking if the whole loop is here then current is going one way in 5 of the wires and the other way in the other 5 wires so how would they interact? Vs if the loops are really big and we can not see the other side of the loop? Thank you!!

[@electricandmagneticfields2314]

Yes, the rest of the large loop is outside the view of the camera. So in the region of the filings, the magnetic field from the wire where it starts to loop is insignificant. The current is going in the same direction in each of the wires in order to get a larger effective current in the vicinity of the iron filings.

[@mysigt_]

If you had a strong enough current, would the iron filings move outwards in spirals?

[@electricandmagneticfields2314]

No, they would just form more circles further out.

[@danielfunes2419]

Watch magnetic field around a long straight current carrying wire demo. Answer what you see: The magnetic field is circular around the wire.

[@movou77]

It's a nice video

[@GrandMoffTarkinsTeaDispenser]

Found your channel yesterday while searching for electromagnetism videos. Trying to build hoover shoes with magnets and a coil but I suspect it won't work because of Newton's third law haha. Your videos are good thanks.

[@divyamkothari4387]

😂

[@manavvats2182]

@@divyamkothari4387 ok

[@imad_vlogs4435]

Why the irons don't attracted to it why it rotates

[@THE_ONLY_GOD]

Was it concentric circles or more like multiple spirals?

[@electricandmagneticfields2314]

concentric circles. The field lines close on themselves.

[@manta567]

Nice!

[@electricandmagneticfields2314]

Thanks!

[@DibakarThakur-sm6vy]

How much current have you passed through the wire?

[@electricandmagneticfields2314]

I'm sorry I don't remember. I do this one in class kzbin.info/www/bejne/mKKZepuXpcuomac and I use a 9V battery.

[@TrickerBaby]

Thanks sir difficult its difficult understanding by myself without any magnet and iron fillings !

[@davidrandell2224]

Electricity is expanding electrons crossing over from the subatomic realm to atomic realm spiraling around the wire- skin effect- hence the circular arrangement of the iron filings. “The Final Theory: Rethinking Our Scientific Legacy “, Mark McCutcheon for proper physics.

[@codetech5598]

One thing I don't like about this method is that the iron filings themselves become tiny magnets and stick together. This actually changes the way that they behave, and influences the results.

[@karinakachtanova4107]

no one cares we're just trying to do our physics homework

[@electricandmagneticfields2314]

The friction of the iron filings on the plastic hold them in place. That is why I had to tap on the plastic to get them to rotate along the field lines. In this video kzbin.info/www/bejne/h5K9YZtta71pmpI you can see the problem you point out. The iron filings rotate along the magnetic field lines but then they start drifting towards the poles of the magnet.

[@CondensedComments]

What's another method?

[@noahandhosi]

@@karinakachtanova4107 😂

[@ICallBullTV]

@@electricandmagneticfields2314 That doesn't address his original comment of 'iron filings themselves become tiny magnets and stick together.' All your video provided is that the iron filings became tiny magnets that stick together... in liquid

[@mutthunaveen]

Which direction are they polarised to?

[@electricandmagneticfields2314]

If you put your right thumb in the direction of the current flowing in the wire with your right fingers curling around the wire, your right fingers point in the direction of the magnetic field.

[@mutthunaveen]

@@electricandmagneticfields2314 Thanks for the reply dear. Is it possible to visualise with those particles? So that both pattern and direction can be visualised 😎

[@electricandmagneticfields2314]

@@mutthunaveen This will only show the pattern but not the direction.

[@mutthunaveen]

@@electricandmagneticfields2314 😎😎❤️ Got it. If that can be visualised. The whole text book theory can be visualised. Already what you have have posted is a Great video, thanks for your thoughts.

[@aronhighgrove4100]

@@mutthunaveen you could use many small compass needles placed around the wire to visualize the fields direction. Or tiny bar magnets of the size of iron filings, that have one ended colored.

[@ananthageethavidyalaya-mys6504]

Ohh! Man...

[@animemaster7340]

very helpful

[@electricandmagneticfields2314]

I'm glad it was useful for you!

[@kulandaivelu6890]

10th std syllabus and a lot helpful

[@amelia.crorie9043]

SO COOL OMG AAAAH

[@therealityspace15]

The thumbnail is a picture in my physics book

[@a2editz605]

Is that clockwise or anti-clockwise?

[@electricandmagneticfields2314]

If you put your right thumb in the direction of the current flow, your right fingers wrap around the wire in the direction of the magnetic field.

[@carlosnoriega7296]

Where is the north pole in this case?

[@electricandmagneticfields2314]

I don't recall the orientation with respect to the earth's magnetic field when this was filmed. The field from the earth is too weak to move the iron filings, so that is why they remain random until a current is flowing through the stranded wire. The field drops off with distance from the wire and why the iron filings at the edge of the field of view remain randomly oriented.

[@carlosnoriega7296]

@@electricandmagneticfields2314 but i mean, when we see a permanent magnet you can clearly notice the north pole and the south pole but in the case of a wire carrying a current where is the north pole. Isn't that weird?

[@electricandmagneticfields2314]

OK, I now understand your question. It would probably be a 10 minute video to properly answer, which is now on my to do list for this summer. But let me see what I can do in a few sentences. For the wire we have what are referred to as free currents generating the magnetic field. There is a magnetic flux density, B, and a magnetic field intensity, H, with B = (mu sub o) H. The B and H fields are continuous and mapped out by the iron filings. In a magnet we have bound currents that generate the magnetic field. The bound currents are the electrons in orbit and the electron spin. We now will have three fields, B, H, and magnetization M, with B = (mu sub zero)(H+M). The magnetic flux density still forms closed loops, that is B is continuous. H and M are not continuous. M only exits inside the magnet and the north pole of the magnet is a source of H and the south pole a sink of H. Hope that helps a little. @@carlosnoriega7296

[@carlosnoriega7296]

@@electricandmagneticfields2314 so in reality there is no such a thing as north and south pole? Are those just two points that we use as reference? Because in a permanent magnet the magnetic field lines go through the magnet's body forming a loop?

[@electricandmagneticfields2314]

Yes the lines are continuous, so if they are outside a wire there is no place to call a north or south pole. When they are from a permanent magnet we designate where they emerge as the north pole and where they enter as the south pole. @@carlosnoriega7296

[@umayrzaahir7436]

#nayeem

[@sus_girl469]

thanks! but you didn't tell the direction of current plus show the direction of magnetic field generated by it by right hand thumb rule. plus PLEASE also tell the poles generated by this electromagnetic field and show the deflection by compass

[@electricandmagneticfields2314]

If you put your right thumb in the direction of the current flow, your right fingers wrap around the wire in the direction of the magnetic field. Yes you can put a compass next to the wire to show this.

[@sus_girl469]

ohk, thanks... nice video!

[@electricandmagneticfields2314]

You are welcome@@sus_girl469

[@arunarajshekar4297]

What happens if we change the direction of current

[@electricandmagneticfields2314]

The direction of the magnetic field would reverse. But it would still be circles. So the iron filing image would look the same.

[@imad_vlogs4435]

Why the irons not attracted to the wire why it rotates

[@electricandmagneticfields2314]

This is a fundamental observation, that magnetic field lines form circles around the wire so the iron filings form a circular pattern.

[@sumankaushik2774]

only legends know His thumbnail picture was used by Rakshak sir in His session of magnetic effect of electric current 😂

[@michelkayat7474]

do this in water with electrolyte solution

[@iazid2198]

Marco es chipi

[@KunSopheap168]

កន្តួយម៉ែហែង❤

[@ishowsskk4407]

ឡូយណាស់❤😂

[@user-er5oe2uu1r]

យល់ស្រប

[@ggnjhgbvvvhjjngcv9249]

😢😢

[@trizooo1332]

Dot

[@TithiaVongkheng]

Ok

[@sunahangrai3601]

must the naked wire be ?

[@electricandmagneticfields2314]

No, you want to use insulated wire. That way if you have 10 loops of the wire you have 10 times the current and so 10 times the magnetic field.

[@sunahangrai3601]

@@electricandmagneticfields2314 hello ! what is the required voltage ?

[@electricandmagneticfields2314]

@@sunahangrai3601 I did this a while ago and unfortunately do not remember. I do this one kzbin.info/www/bejne/mKKZepuXpcuomac every semester in class and I use a 9V battery. The coil is a much easier demo to put together.

[@experimentstrom9520]

This was clockwise or anticlockwise

[@electricandmagneticfields2314]

If the current is coming up out of the page the magnetic field lines would be counterclockwise. Put your right thumb in the direction of the current flow and your right fingers curl around the wire in the direction of the magnetic field.

[@experimentstrom9520]

@@electricandmagneticfields2314 yes sir but in this experiment the current is entering or exiting ,I mean the current is flowing from upper side or downwords side

[@skeleton-11-]

@@experimentstrom9520 if I had to say, I would say it is coming from above. Since I don't see anything powering the wires from below. And if that is the case, the Flow should loop clockwise. But do we call that field an electric or magnetic field?

[@luisguillenmontenegro8198]

YOU SHOULD DO AC

[@jamesh1017]

Well OK "Prof. M" what is the point or objective of this exercise? So suppose I'm a curious grade schooler, say 11 years old, and magnetic and magnetism are keeping my curious mind busy. But stumbling upon this video I see that this device can be diy homemade by myself and that's got me on a scavenger hunt for parts. But what's missing from this instructionally video, well it's not instructional and not caution or safety instructions shared not even a get out of jail free legal disclaimer. So how would a person young or old know that all copper wires are not equal, especially when it comes to how copper is dressed up in different coverings dependant upon specific of circuit. I've no way to know that your ten twisted copper wires are all evenly coated in enamel or other such material, heavy gauge wire. So one amp multiplied by ten equals ten, great instructions. Now dependant upon what I do with the business end of each wire, may very well determine what happens to my body and this life. In USA shove each end into wall outlet, now we find out if your god is good, is this outlet protected by a GFCI or not, what is the breaker rated to in amps outside in that box, most people fear. There are so many varieties of devices access the world to energize a wire with. So how many lives have been altered or ended due to curiosity and a complete lack of safety instructions. Bet if this was an academic paper presented for peer review might it cut the mustard.

[@alokthakre4686]

Your video sounds translate in hind

[@lhcinv9143]

Actually iron fillings lie

[@moh7mdga6er19]

😂😂😂😂😂😂😂😂😂😂😂😂

[@sunahangrai3601]

hi ! i want to watch this exowriment whoke view

[@Natureandwildlife-xj5bc]

I dont know why my teacher wasted my whole time Why the schools do not teach the same even after taking a handsome amount of money They are just making students confused

[@electricandmagneticfields2314]

I am glad if my videos are helping to alleviate some of the confusion.

[@TheRealKalEll]

The Sun 1:24

[@Totardotech]

Not too detail and fun to watch for a professor.

[@electricandmagneticfields2314]

Thank you!

[@CHITUS]

If you have a powersupply ..do do same experience with changing ams and voltage and let us see how the field would look like.. :)