Yes somebody please explain what magnetic fields do since he won't take my word for it. A charged particleBengt Nyman wrote:Somebody help !sjw40364 wrote: Tell me, what do magnetic fields do? They cause things to circle perpendicular to the electric force.
moving in a plane perpendicular to a magnetic field will move in a circular orbit with the magnetic force playing the role of centripetal force. The direction of the force is given by the right-hand rule.
Equating the centripetal force with the magnetic force and solving for R the radius of the circular path we get
mv^2 / R = q v B and
R = m v / q B