What is the difference between B and H?
B refers to magnetic field and H refers to magnetic intensity.
B | H |
B is the representation of magnetic flux density. | H is the representation of magnetic field intensity. |
It is defined as the number of field lines of force passing through a unit area of material. | A measure of the actual magnetic field within a material considered as a concentration of magnetic field lines, |
The relation between magnetic field density and flux density is given by, Where is the permeability constant. | The SI unit of magnetic field intensity is Tesla |
B is different for different materials and also varies with the current from which it is produced. | H is a constant for different materials and depends only on the source i.e, a current carrying wire or a magnetic material. |