Unterschied Magentische Feldstärke & Flussdichte?

The magnetic field strength (H) and magnetic flux density (B) are two different but closely linked concepts in electrodynamics.

1. Magnetic field strength (H): It is a measure of how strong a magnetic field is generated. One could say that it is similar to the electrical voltage, as it represents the “force” or “energy” that generates the magnetic field. It is measured in the Ampere unit per meter (A/m).
2. Magnetic flux density (B): It is a measure of how much magnetic field lines flow through a specific area. In this sense, it could be regarded as an analogue to the electric current, as it represents the “quantity” or “density” of the magnetic field flowing through a certain area. It is measured in the unit Tesla (T).

The relationship between the two is determined by the permeability of the medium through which the magnetic field flows. The formula is:

B=μH

where μ is the permeability.

Considerable, one could say that the field strength represents the “exercise” that is used to generate a magnetic field, while the flux density is the “exercise” or the “result” of this effort. It is similar to the voltage (the “exercise” to generate an electric current) and the current (the “exercise” or the “result” of this effort).