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vinknee
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I am trying to make an electromagnet sphere shape about 6 inches OD. Is this possible?
technician said:
This would give me a starting point to construct a spherical magnet of some sort.
Why not take lots of bar magnets and super glue them together in a radial distribution??
technician said:What would you accept as evidence of spherical symmetry?
technician said:I have a ball 15cm diameter, wherever I place a compass, outside the ball, the compass points away in a radial (as far as I can tell) direction.
How close am I to meeting your requirement?
technician said:
'impossible' is a strange word to use!
If you take a loudspeaker apart you will find a ring that is magnetised with the poles on the inner surface and the outer surface. This is a cylindrical magnet rather than a shperical magnet.
The same geometry is used in an electric motor.
This would give me a starting point to construct a spherical magnet of some sort.
Why not take lots of bar magnets and super glue them together in a radial distribution??
technician said:I forgot to mention that I ignored Earth's magnetic field but assumed that would be realized. The effects due to the Earth's magnetic field have nothing to do with the effects of my special ball.
technician said:I have a ball 15cm diameter, wherever I place a compass, outside the ball, the compass points away in a radial (as far as I can tell) direction.
How close am I to meeting your requirement?
technician said:No worries, my answer assumed the only contribution was from your ball.
Are you ready to invest? Cheques payable to ...
technician said:Your experiment is flawed. It may be that you haven't been thorough in mapping your field or it may be that you compass is flawed.
You don't know how I did it...how can you criticize it?
The only problem was interference from the Earth's magnetic field ! which was easily identified.
technician said:Why should we spend hours of our time trying teach you mathematical concepts you are not prepared for and will argue with when you can just do it.
I did not ask you to spend hours of your time trying to teach me mathematical concepts!
use your hours doing something better !
I am following an idea that was raised here
Integral said:Yes you are. The reasons you cannot have what you claim is in the mathematics of Maxwell's equations. If you cannot understand those we must baby talk to you. That has never worked before and never will.
All I can say is keep looking you WILL find an north and south pole.
Please don't waste any more of our time asking us for explanations you cannot understand.
Thread locked.
Making a sphere electromagnet requires a few steps. First, gather a spherical object made of a magnetic material such as iron or steel. Next, wrap an insulated wire around the object, leaving enough wire to connect to a power source. Finally, connect the wire to a power source, such as a battery, to create an electric current and turn the object into an electromagnet.
The materials needed to make a sphere electromagnet include a spherical object made of a magnetic material, such as iron or steel, and an insulated wire. You will also need a power source, such as a battery, to create an electric current.
The strength of a sphere electromagnet depends on the size of the object, the number of coils of wire, and the amount of current flowing through the wire. Generally, the larger the object and the more coils of wire, the stronger the electromagnet will be.
To increase the strength of your sphere electromagnet, you can use a larger spherical object, add more coils of wire, or increase the current flowing through the wire. You can also try using a magnetic material with a higher magnetic permeability, which will enhance the magnetic field produced by the electromagnet.
A sphere electromagnet can be used for a variety of purposes, such as picking up small metal objects, creating magnetic fields for experiments, or as a component in electronic devices. They are also commonly used in research and industrial settings for their ability to create strong, controlled magnetic fields.