Can a constant magnetic field stop a particle in motion?

I know that a magnetic field cannot set into motion an electron initally at rest , but can it stop a particle in motion?Can a constant magnetic field stop a particle in motion?no it can not because the motion and the magnetic field must be 90 deg in order to create a force (or the dot product of it) and the force itself is perpendicular to the magnetic field and motion. since you need a force to act in order to bring an object to rest and the force and motion are independent of each other the answer is NO. hope that helps good luckCan a constant magnetic field stop a particle in motion?well there is this thing called electromagnetic braking but they aren't particles either. Magnetic fields can make charged particles do loops continuously. That I do know so in general the particle stops at a common center but not technically stopped. it keeps moving. I'm not sure its impossible though. Hmm actually it may be possible. a changing magnetic field changing fast enough generates an electric field as if emanating from it center. This electric field could stop your particle but it has to be a changing magnetic field.