Can You Create a Circular Magnet with Circular Magnetisation?

In summary, a circular magnetised magnet is a permanent magnet with poles located at the outer edges, created by magnetising a cylindrical magnet in a circular pattern. It has a stronger and more uniform magnetic field compared to traditional magnets, making it useful in applications such as magnetic sensors, MRI machines, and magnetic levitation systems. The strength of a circular magnetised magnet can vary but can reach up to 1.4 Tesla.
  • #1
DrZoidberg
522
70
What happens when you try to create a ring shaped magnet with a circular magnetisation.
e.g. you take an unmagnetised steel ring, wind some copper wire around it, turn on the current for a few seconds and then remove the wire. Afterwards there should be a circular magnetic field inside the ring right? Will there be any field outside?
 
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  • #2
Try googling "magnetic keepers".
 

Related to Can You Create a Circular Magnet with Circular Magnetisation?

1. What is a circular magnetised magnet?

A circular magnetised magnet is a type of permanent magnet that has been magnetised in a circular shape. This means that the poles of the magnet are located at the outer edges instead of the ends, giving it a unique magnetic field.

2. How is a circular magnetised magnet made?

A circular magnetised magnet is made by first creating a cylindrical magnet, and then using a special machine to magnetise it in a circular pattern. This process aligns the magnetic domains in the magnet to create the circular magnetic field.

3. What are the benefits of using a circular magnetised magnet?

There are several benefits to using a circular magnetised magnet. This type of magnet can provide a stronger magnetic field compared to traditional magnets, and it also has a more uniform magnetic field that can be useful in certain applications. Additionally, the circular shape allows for more precise control over the magnetic field.

4. What are some applications of a circular magnetised magnet?

Circular magnetised magnets are commonly used in magnetic sensors, such as Hall effect sensors, due to their more uniform magnetic field. They are also used in magnetic resonance imaging (MRI) machines, magnetic levitation systems, and in various industrial and scientific research applications.

5. How strong is a circular magnetised magnet?

The strength of a circular magnetised magnet can vary depending on the size and material of the magnet. However, in general, they can have a stronger magnetic field compared to traditional magnets. Some circular magnetised magnets can have a flux density of up to 1.4 Tesla, which is significantly higher than the Earth's magnetic field (0.00005 Tesla).

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