Related topics
Induction, magnetic flux, coil, magnetic field strength, magnetic field of coils, remanence, coercive field strength.
Principle
A magnetic field is generated in a ring-shaped iron core by a continuous adjustable direct current applied to two coils. The field strength H and the flux density B are measured and the hysteresis recorded. The remanence and the coercive field strength of two different iron cores can be compared.