For 10 points― name this phenomenon in which magnetic flux density varies nonlinearly with applied magnetic field in ferromagnetic materials.
A model of this process based on nonideal relay nonlinearities is known as the Preisach model, and thyristors employ positive feedback together with this process to achieve their latching function. In audio tapes, a (*) bias current is applied to counter it, and discrete transitions during this process due to critical domain reorientation are known as the Barkhausen effect. For 10 points― name this phenomenon in which magnetic flux density varies nonlinearly with applied magnetic field in ferromagnetic materials.
A model of this process based on nonideal relay nonlinearities is known as the Preisach model, and thyristors employ positive feedback together with this process to achieve their latching function.
hysteresis