If I have a magnetic core and place that magnetic core onto a magnet, and then roll the core on a flat surface ( whilst its still on the magnet), does that increase the permeability magnetic field of that core ? If so, what is the theory behind that.
ChatGPT
Yes, rolling a magnetic core on a flat surface while it's still in contact with a magnet can indeed increase its permeability temporarily. This phenomenon is known as "magnetic aging" or "magnetic conditioning." The theory behind this lies in the alignment of magnetic domains within the core material.
When a magnetic core is exposed to a strong magnetic field, such as that generated by a magnet, the magnetic domains within the core tend to align themselves with the external magnetic field. This alignment enhances the overall magnetization of the core and consequently increases its permeability.
Rolling the core on a flat surface while it's still in contact with the magnet can facilitate the alignment of these magnetic domains in a more uniform manner throughout the core material. As a result, the core's permeability may increase temporarily due to this enhanced alignment of magnetic domains.
However, it's essential to note that this effect may not be permanent. The increase in permeability is typically reversible and can diminish over time when the core is removed from the magnetic field and allowed to relax. Additionally, the exact extent of the increase in permeability and the duration of its effect depend on various factors such as the material composition of the core, the strength of the magnetic field, and the duration of exposure.
