In Physical, the force of Lorentz indicates:

• is the electromagnetic Force:
  

$\backslash \; vec\; F\; \backslash \; =\; \backslash \; Q\; \backslash ,\; \backslash \; vec\; E\; \backslash \; +\; \backslash \; Q\; \backslash ,\; \backslash \; vec\; v\; \backslash \; wedge\; \backslash \; vec\; B\; \backslash ,$

where

* $\backslash \; vec\; F$ is the electromagnetic Force or Force of Lorentz , in newton

* $q\; \backslash ;$ is the load of the particle, in Coulomb

* $\backslash \; vec\; E$ is the Electric field, in Volt by Mètre

* $\backslash \; vec\; v$ is the speed of the particle, in Mètre a second

* $\backslash \; vec\; B$ is the Magnetic field, in Tesla

all measured in same the Reference frame galiléen at the point where the particle is.

• is the particular case of this force applied to a load Q in the absence of Electric field.

It is then the magnetic force which one generally calls Force of Laplace, whose expression is: $\backslash \; vec\; F\; =\; Q\; \backslash \; vec\; v\; \backslash \; wedge\; \backslash \; vec\; B$

where

* $\backslash \; vec\; v$ is the Speed of the particle charged

* $\backslash \; vec\; B$ is the Magnetic field

measured both in same the Reference frame galiléen at the point where the particle is.

See too

• Force of electromagnetic Laplace
• Force
• Electromagnetism
• Hendrik Antoon Lorentz

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