[ciniva (OP)]

Can anybody tell me, is there a chance to make a shield from a magnetic field?
If there is a possibility, what materials should I use?


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[Bored chemist]

An iron plate would do the job.

[Colin2B]

As @Bored chemist  says an iron plate will do the job as will sheet steel. You have to make sure that the metal does not saturate, so it will work as long as you aren't using extremely powerful magnets. You also need the shield to extend beyond the length and width of the magnet or you will get leakage around the sides. Best to experiment.

[ciniva (OP)]

You have to make sure that the metal does not saturate, so it will work as long as you aren't using extremely powerful magnets

Thanks for the advice.
Do you mean a neodymium magnet grade N52 or N50M.
Will it the steel sheet or iron plate, successfully have effect on the said magnets?
btw: I have a galvanized sheet metal.

[ciniva (OP)]

I've found on YouTube some video presentations with materials like Giron and Mumetal. (I do not want set link to here, I do not violate the forum rules, but if the moredator permits me I will include a link to youtube)
Since there are a lot of false (fake) presentations there, what do you think about these materials?
Is it worthwhile to buy these materials (especially Giron that advertises on youtube)

[Bored chemist]

Mu metal has been used for years as a magnetic screen.
It's a little more effective than iron, but a lot more expensive.
As far as I can tell giron is similar.

What are you hoping to achieve?
If you just want to put a box round a magnet so you can send it by post without annoying the carrier, then a biscuit tin would do the job fairly well.

[ciniva (OP)]

No, I do not want to send a magnet anywhere.
I want to block the magnetic field.
I want to construct two separate magnets as shown below


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[Bored chemist]

If you are trying to make a "magnet" with just one pole then you are wasting your time.
https://en.wikipedia.org/wiki/Magnetic_monopole

[Kryptid]

If you are trying to make a "magnet" with just one pole then you are wasting your time.
https://en.wikipedia.org/wiki/Magnetic_monopole

I am admittedly curious as to what would happen if you constructed a shielded magnet like the type shown in post number 6. Would the magnetic field stop working altogether?

[ciniva (OP)]

If you are trying to make a "magnet" with just one pole then you are wasting your time.

No, I do not want to make a single-pole magnet. I just want to prevent the magnetic field out of the shield.

Would the magnetic field stop working altogether?

And I'm interested in that

[ciniva (OP)]

I am admittedly curious as to what would happen if you constructed a shielded magnet like the type shown in post number 6. Would the magnetic field stop working altogether?

Hi Kryptid
I want to inform you. I made a magnetic shield around the magnet, in fact I made a single-pole magnet.
You can see the video on a link (if I do not violate the forum rules by placing a link and if the moderator does not delete the link).
https:// www.youtube.com/watch?v=TDqz3eqjI5g&feature=youtu.be [nofollow]

[Bored chemist]

That's not a monopole.

[evan_au]

I made a magnetic shield around the magnet, in fact I made a single-pole magnet.

The magnetic shield does not eliminate a pole, it just redirects the magnetic lines of force.

Please do this experiment:
- Place a sheet of paper over the new shielded magnet you have made
- Sprinkle iron filings on the paper, and tap it until they form into lines
- Take a photo
- Post the photo here.

I suspect that the magnetic shield will now become the "missing" pole.

[ciniva (OP)]

That's not a monopole.

I do not claim to be a monopoly magnet. It's just an object that prevents the other pole magnet from acting outside the magnetic shield. Thus, the object behaves like a monopoly magnet.

Please do this experiment:....

I will do it in the next few days

[Danne]

Really excited to see what is going to happen. How large is the magnet in your final project ?

[Colin2B]

I suspect that the magnetic shield will now become the "missing" pole.

I suspect the same, see

This is the key to possible solutions that I want.
link: https://www.thenakedscientists.com/forum/index.php?topic=71465.0

Looking at that link I see a comment:

I am admittedly curious as to what would happen if you constructed a shielded magnet like the type shown in post number 6. Would the magnetic field stop working altogether?

I think Kryptid is right. The magnetic field lines will flow through the shielding material from the enclosed pole and at the open end the field lines will try to take the shortest route to the open pole - the surrounding shielding will act as the opposite pole. You will have made something similar to a horseshoe magnet where one pole (the outer pole) surrounds the inner one, this means the field will not extend out as far as an unshielded pole. However, I think you will need to leave an air gap between the poles otherwise the field extent will be minimal.

[Bored chemist]

What you have made is something very much like the magnet in most loudspeakers.
http://practicalphysics.org/model-loudspeaker.html

[ciniva (OP)]

How large is the magnet in your final project

Neodymium disc magnets 6 pieces connected to the stack.

Sprinkle iron filings on the paper, and tap it until they form into lines

As I promised, you can see everything in this video
https:// www.youtube.com/watch?v=myqCHp22nGU&feature=youtu.be [nofollow]

I'm interested in the following:
Can a 'lessEMF' magnetic shield (on youtube there is video), prevent magnetic field strength from neodymium magnets?
Does anyone have any experience?

[alancalverd]

Magnetic field lines are equipotential contours, so they must form closed paths. The diagrams are incomplete.

[ciniva (OP)]

The diagrams are incomplete.

It's just an experiment.

Nobody  did not answer on my question in post #17. Is there anyone in this forum have of real experience with "lessEMF"?