Question: Show that R = and then redo Example.
Example: If electrons accelerate from rest through 200V, they acquire a kinetic energy of 200eV. Assume that a beam of these electrons enters a region of uniform magnetic field of B = 5mT. If the beam enters perpendicular to B, what is its radius of curvature?
First, find the velocity of the electron.
F = qvB sinΘ