Microscopic areas of atoms where the magnetic fields are
aligned.
Ferromagnetic:
A naturally magnetic class of materials where the magnetic
domains are ordered and do not cancel out.
Magnetic Field:
Lines showing the shape and exent of a magnetic field around
a permanent magnet or a moving charged object. To signify a
field coming directly out of the plane of a page, dots are
used. To signify a field going directly into the page, an X is
used.
Right Hand Rule. RHR:
1. The fingers extend or curl in the direction of the
magnetic field.
2. The outstretched thumb points in the direction of
conventional current, or the direction of a positively charged
moving particle.
3. A line perpendicular to the palm indicates the direction of
the magnetic force.
Mass Spectrometer:
A device that magnetically separates charged ions according
to their mass. A magnetic field is used to accomplish this
separation.