The Lorentz force law states that a charged particle with defined velocity in an electric field and a magnetic field experiences a force:

where
force vector exerted on the particle, measured in newtons
position vector in three-dimensional space, typically expressed as and measured in meters
time, measured in seconds
electric charge of the particle, measured in coulomb
electric field, measured in volts per meter
velocity vector of the particle, in meters per second
magnetic field (or magnetic flux density), measured in tesla