What defines the force that moves magnetic domains in a material?

The force that moves magnetic domains in a material is defined by magnetic flux. Magnetic flux refers to the total magnetic field that passes through a given area, and it plays a critical role in how magnetic domains align and interact within materials. When magnetic materials are placed in an external magnetic field, the magnetic flux influences the orientation of the domains, causing them to align in the direction of the field. This alignment is what contributes to the material becoming magnetized.

Understanding magnetic flux is vital because it not only describes the extent of the magnetic field but also explains how it affects the behavior of the magnetic domains, ultimately determining the material's overall magnetic properties.