In Physical, the force of Lorentz indicates:

\ vec F \ = \ Q \, \ vec E \ + \ Q \, \ vec v \ wedge \ vec B \,
where
* \ vec F is the electromagnetic Force or Force of Lorentz , in newton
* q \; is the load of the particle, in Coulomb
* \ vec E is the Electric field, in Volt by Mètre
* \ vec v is the speed of the particle, in Mètre a second
* \ 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:
\ vec F = Q \ vec v \ wedge \ vec B
where
* \ vec v is the Speed of the particle charged
* \ vec B is the Magnetic field
measured both in same the Reference frame galiléen at the point where the particle is.

See too

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