Measuring the Magnetic Force

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Күн бұрын

047 - Measuring the Magnetic Force
In this video Paul Andersen explains how a magnetic force arises when magnets or moving electric charges interact with one another. A magnetic dipole will orient towards a magnetic field. When an electric charge is moving it will generate a magnetic field that can be measured using the right hand rule and a magnetic probe. An inquiry lab using a slinky is also included.
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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:
Chetvorno. English: Magnetic Field Lines (red) of a Wire Loop Carrying an Electric Current I, Illustrating How the Field Lines All Pass through the Interior of the Loop, Creating a Strong Magnetic Field There. This Explains Why Coils of Wire Are Used in Electromagnets, Inductors, and Transformers., March 12, 2014. Own work. commons.wikimedia.org/wiki/Fil....

Пікірлер: 34

@VoidDilation 9 жыл бұрын

As always great video!

@jameswilliams-nw3lq 3 жыл бұрын

I will have to watch this again, thank you very much for sharing.,

@Big_Sploosh 9 жыл бұрын

very helpful, thank you :D

@nadahere Жыл бұрын

The field direction around a long straight conductor is circumscribed which never points to the conductor. It arises from a different effect from the field of a PM where the B field [compass] points to the magnet poles where they emanate/terminate. A coil/solenoid mimics a PM through a geometric construct but that is only a trick/artifice.

@alexflores7652 2 жыл бұрын

That was one of the best of thee best explanations of the right hand rule that I have seen in all of the online forums.I would love to see this experiment done using DC in an digital IC circuit to detect data in the EMF radiation.

@michaelryd6737 Жыл бұрын

Sorry to tell you but the experiment in the beginning has actually nothing to do with the explanation of the right hand rule....

@user-gx4gb1gx7b 5 жыл бұрын

Good video

@sammyshimai6948 6 жыл бұрын

What books 📚 would you recommend to read about this further? I like physics but don't like the technical language.

@louayghassan7224 6 жыл бұрын

thx for the video i just have a question regarding how to place the Tesla meter prob to measure the magnetic field inside the solenoid, the way inside the video, the magnetic field or even the solenoid is perpendicular to the prob, correct? how about if i place the prob not perpendicular to the wave or the solenoid. will i be getting the same magnetic field measurement on the Tesla meter?

@TylrVncnt 4 жыл бұрын

Is right hand rule for conventional current flow or electron flow? Thank you

@johannwegmann4365 6 жыл бұрын

Dear Paul Andersen, Thanks for kind class,I have used Fi=BA, and d(u,v)=udv´+vdu.and equalizeit to 0, then D inside sol.=2 l,l is sol.legth,missing second derivative to check if is a max or min. Formula 1 uses D piston=2 l,l beng stroke.If you please tell me what is ocurring with plunger displacement? lets assume plunger ferrite,low remanence,length is h,and solnoid legth is l/2+l/2=L,what is plunger stroke between what distance between L,fom de middle? or from 0? If you please, I am behind a double acting, 2 solenoids in series,I undertood you that N moves from cero B grows?Thanks a lot,Kind Regards JOhann Wegmann

@LandoMatindi 6 жыл бұрын

Professor, what if the solenoid is made of a hollow tube completely filled with ferrofluid and with both ends of the tube connected and looped through a high-speed pump moving the ferrofluid inside the tube, will the ferrofluid filled solenoid produces a magnetic field or force?

@robertdestefano3476 Жыл бұрын

Let's suppose a 10v power supply at 2 amps, with 10 copper wraps and a steel core. Do I need a magnetometer that's calibrated for 0 - 200 millitesla? Or something that measures in 0 - 200 gauss?

@habao321 6 жыл бұрын

What is the name of this software, please?

@damensutherland7081 10 ай бұрын

I wonder how in a transformer on the secondary it is one wire but labeled as ac .it seems like it would short it out at the base of secondary windings

@lambdamax 3 жыл бұрын

Quick question Mr. Anderson(or anyone who can clarify this for me). In the first few minutes, when you drew an arrow vector from South to North on the magnetic dipole to visualize the direction of the magnetic field, isn't it supposed to be the other way? I thought that magnetic field lines were conventionally drawn from North to South. Thank you.

@bmzaron713 2 жыл бұрын

Yeah what you said

@powerbell 8 жыл бұрын

buds a slinky will not work as a solenoid because the wire is not insulated

@SaintSaint 6 жыл бұрын

True. You'd have to stretch the slinky and wrap your ferromagnetic core with some cling wrap.... it would suck, but it would work. More interestingly: Would the shape of the wire significantly affect the flux density at higher frequencies? b/c most electromotive force would be on the outside of the wire, right? idk. probably not significant... but it's a thought

@balabhadranayak2249 5 жыл бұрын

how to calculate magnetic force inside the solenoid

@rebelsky3549 5 жыл бұрын

U make me wanna science

@spinzaar 7 жыл бұрын

"It seems magical, but its simply a magnetic force"? The word magical = magnetic force.

@k.chriscaldwell4141 Жыл бұрын

_You can’t break a magnet in half…you get just two magnetic dipoles.”_ The inquisitive ones of us learned this by breaking our experimental magnets in half several times. Other students then did so. The teacher was not pleased. Should have taught us that lesson before handing us the school’s new magnets.

@BinaryKiller_Recoded 3 жыл бұрын

My search to get this video was "How to efficiently make electromagnetic force go somewhere" and I am still wondering, reason for me wondering is because of dead space's kinetic module, to lift heavy objects that a person could not ordinarily move..... So yeah

@satyendranarayanjha4899 3 жыл бұрын

जय जय भारत

@notnecessary7730 3 жыл бұрын

That's a coil not a solenoid, a solenoid has a set of contacts

@bjl1000 6 жыл бұрын

It's not "copper wire" its a pipe.

@nasalimbu3078 3 жыл бұрын

Vertical =core

@aaroozz 5 жыл бұрын

lol, "seems magical but its SIMPLY magnetic force" ... ya, magnets! how do they werk?!

@Owais-Ali 5 жыл бұрын

WHICH ONE IS THE RIGHT HAND!!!

@mubarak4886 5 жыл бұрын

The right hand is used for the conventional current whereas the left hand is used for the electronic current, and in the both cases the four fingers ultimately point to the same force direction.