hysteresis losses

EM also dnt knw.sori ;-D

The purpose of the B-H curve is to quantify the relationship between the magnetic flux density (B) and the magnetic field strength (H) in a material. It helps in understanding the magnetic properties of materials, such as their magnetization behavior and saturation levels, which is essential for designing magnetic devices and systems.

A ferromagnet has a steep gradient B /H curve with very noticeable hysteresis. A paramagnet has a shallow curve with almost no hysteresis.

hysteresis loss= K B^1.6 egs/sec where k is STEINMEITZ coefficient and B is the maximum magnetic flux density