Magnetic Flux Density: The magnetic flux density, also known as the magnetic induction, is the measure of the strength of the magnetic field in a given area or volume.
Magnetic Susceptibility: Magnetic susceptibility is a dimensionless proportionality constant that indicates the degree of magnetization of a material in response to an applied magnetic field.
Magnetic Permeability of Free Space: The magnetic permeability of free space, also known as the vacuum permeability, is a fundamental physical constant that describes the ability of free space to support a magnetic field.