The ratio of the induced magnetic field to the strength of the magnetic field causing the magnetization.

the extent to which a material becomes magnetized when placed within a magnetic field. Differences in magnetic susceptibilities at tissue borders are a frequent cause of MRI artifacts.

the ratio of the magnetization to the external magnetic field that induces it Magnifying glass – a single converging lens that, when held near the eye, gives an image whose size on the retina is larger than that observed by the unaided eye

the proportionality constant between the magnetization M and the magnetic field strength H.

A measure of the degree to which a body is magnetized. In SI units this is related to relative magnetic permeability by k=µr - 1, and is a dimensionless unit. For most geological material, susceptibility is influenced primarily by the percentage of magnetite. It is most often quoted in units of 10-6. In HEM data this is most often apparent as a negative in-phase component over high susceptibility, high resistivity geology such as diabase dikes.

a physical property that in sediments is determined by their mineral composition, and in some cases, by particle size. When a sample is placed in a magnetic field, it becomes magnetic. The ratio of induced magnetization to magnetic field strength is the susceptibility

In electrical engineering, the magnetic susceptibility is the degree of magnetization of a material in response to an applied magnetic field.