physics
In earlier learning sequences we described how a static magnetic field cannot change the speed (and therefore kinetic energy) of a free charged particle. A changing magnetic field can, and this is one way particle beams are accelerated. Consider free protons following a circular path in a uniform magnetic field with a radius of 1 meter. At t = 0, the magnitude of the uniform magnetic field begins to increase at 0.001 Tesla/second. Enter the the acceleration of the protons in meters/second^2: positive if they speed up and negative if they slow down
Reply
Answers
The acceleration of the protons in meters/second^2 depends on the direction of the flux, which is determined by the right hand rule. If the magnetic field is increasing, the protons with their positive charge will experience a force in the opposite direction of the flux (in the direction of decreasing magnetic field magnitude), which will cause them to slow down. In this case, the acceleration of the protons would be negative in meters/second^2.
