### magnetic flux density

**(B, magnetic field, magnetic induction, B field)**
(vector field describing magnetism in relation to the Lorentz force)

The **magnetic flux density** (magnetic field, magnetic induction,
**B field**, or **B**)
is a vector field describing magnetic forces
in a volume.
Its relationship to an electric field (**E**)
is defined by Maxwell's equations and
is illustrated by the Lorentz force Law:

F = q(E + v × B)

- F - force on a particle.
- q - electric charge of the particle.
- E - electric field.
- v - velocity of the particle.
- B - Magnetic Flux Density.

The unit is the tesla (SI) or gauss (CGS).

Another measure of magnetism is the magnetic field strength (H). The physical quantities
(*B* and *H*) are equivalent for the portion of a magnetic
field in a vacuum, but differ where the magnetic field is passing
through some material.

(*physics,magnetism,measure*)
http://en.wikipedia.org/wiki/Magnetic_flux_density

**Referenced by:**

beta (β)

CGS

gauss (G)

magnetic field strength (H)

Lorentz force

magnetic field

magnetic induction

Maxwell's equations

SI

tesla (T)

index