Why does flux flow through ferromagnetic materials?

In summary, the conversation discusses the concept of magnetic flux and its behavior in ferromagnetic materials and conductors. The speaker asks for clarification on how flux flows through ferromagnetic materials and how it affects conductors. They also mention that their book did not explain this concept well. The other person provides an example of flux flow in a copper pipe and how it creates its own B field.
  • #1
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Can anyone help me understand why magnetic flux flows through ferromagnetic materials like an iron ring?

Also, say you have a toroid with a wire wrapped around it (in air) how can you say that the flux that goes through one "loop" will go through ALL the others?

These are just some things my book didn't do a very good job on explaining.
 
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  • #2
By flux you mean how much of the field is going through the cross sectional area ?
Flux will flow through any conductor , like when i drop a strong permanent magnet down a copper pipe , it will reach a terminal velocity , because the field of the magnet starts current to flow in the pipe and creates its own B field that opposes the magnet.
If this is what you are talking about .
 

1. What is flux and why does it flow through ferromagnetic materials?

Flux is the flow of an electric or magnetic field through a surface. It is often represented by the symbol Φ. Ferromagnetic materials, such as iron, nickel, and cobalt, have a high concentration of magnetic domains which allow for the easy movement of flux through the material.

2. How does the structure of ferromagnetic materials contribute to flux flow?

Ferromagnetic materials have a unique crystal structure that causes the magnetic domains to align in the same direction, creating a strong magnetic field. This alignment allows for the easy movement of flux through the material, resulting in the flow of current.

3. Why do ferromagnetic materials exhibit hysteresis in flux flow?

Hysteresis is the phenomenon where the magnetization of a material lags behind the applied magnetic field. In ferromagnetic materials, this is due to the alignment of magnetic domains, which takes time to change. This results in a delay in the response of the material to changes in the magnetic field, causing hysteresis in flux flow.

4. What factors affect the amount of flux flowing through ferromagnetic materials?

The amount of flux flowing through ferromagnetic materials depends on the strength of the magnetic field, the size and shape of the material, and the presence of any external forces. The type of material, its composition, and temperature can also affect the flow of flux.

5. Can flux flow through non-ferromagnetic materials?

Yes, flux can flow through non-ferromagnetic materials, but it requires a much stronger magnetic field. In non-ferromagnetic materials, the magnetic domains are not aligned, making it harder for flux to pass through. However, some materials, such as ferrimagnetic and antiferromagnetic materials, also exhibit flux flow, but to a lesser extent than ferromagnetic materials.

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