# Formula Lorentz Force (Magnetic) Magnetic field    Velocity    Electric charge ## Magnetic force

Unit
Magnetic force acts on a charge $$q$$ when it moves with velocity $$\class{blue}{v}$$ through magnetic field $$\class{violet}{B}$$. The requirement is that the magnetic field $$\class{violet}{B}$$ is perpendicular to the velocity $$\class{blue}{v}$$, that is: the two directions are orthogonal to each other.

This formula represents the magnetic component of the Lorentz force. (Lorentz force is the sum of electric and magnetic force).

## Magnetic field

Unit
Magnetic flux density indicates how strong the magnetic field is in which the charge moves. The greater the magnetic flux density, the greater the magnetic force.

## Velocity

Unit
Velocity of the charged particle. The greater the velocity of the charged particle, the greater the magnetic force.

## Electric charge

Unit
Electric charge can be repulsive or attractive (proton, electron). The greater the electric charge, the greater the magnetic force.