Definition of retentivity in English:
retentivity
nounPlural retentivities ˌriːtɛnˈtɪvɪtiri-
Physics The ability of a substance to retain or resist magnetization, frequently measured as the strength of the magnetic field that remains in a sample after removal of an inducing field.
iron is easily magnetized but has low retentivity
count noun a retentivity of about 10,000 gauss
Example sentencesExamples
- Note that residual magnetism and retentivity are the same when the material has been magnetized to the saturation point.
- Another serious problem concerning erase heads used in conjunction with record/write heads is that of magnetic retentivity.