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Formula Lorentz Force (Magnetic) Magnetic field    Velocity    Electric charge

Formula
Formula: Lorentz Force (Magnetic)
Electron orbit in magnetic field due to Lorentz force
Electron in magnetic field perpendicular to direction of motion

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.