MF: Magnetic Forces
Introductory Physics

Magnetic Fields, Magnetism

Magnetic Force, Uniform Circular Motion (UCM) 

Practicing combined Magnetic Forces and Uniform Circular Motion (UCM) 

In an experiment, we wish to find how many hydrogen atoms in a gas have their electrons ionized (removed). They are accelerated through a 4.5 MV potential and fired in the positive x-direction towards a magnetic field of 0.045 T magnitude. The magnetic field points out of the screen toward you in the positive z-direction. The magnetic field region starts from x = 0 and ends at x = 1 m.

Notes and more practice problems 

Magnetic effects