1- The low coercivity reduces that energy loss associated with hysteresis.
2- The magnetizing force, -Hc, is called coercivity .
3- The width of the middle section is twice the coercivity of the material.
4- Materials with low coercivity have narrow hysteresis loops and so low hysteresis losses.
5- High coercivity stripes are resistant to damage from most magnets likely to be owned by consumers.
6- For inductor cores soft ferrites are used, which have low coercivity and thus low hysteresis losses.
7- These have a solid smooth cylindrical rotor, cast of a high coercivity magnetically “hard” cobalt steel.
8- Because of this, virtually all bank cards today are encoded on high coercivity stripes despite a slightly higher per-unit cost.