A magnetic field can induce a force on a charged particle, so long as it is in movement. This force, called the Lorentz Force, will be perpendicular to the velocity of the particle. More precisely, the Lorentz Force (\(F_m\)) equation is written as: \(F_m = q v \times B\), where \(q\) is the charge of the particle.
In this animation, we see the trajectory of a charged particle (in red) within a uniform magnetic field (blue arrows). Notice how the Lorentz Force continuously redirects the particle to its right hand side, leading to a helical pattern.