|May12-12, 08:15 PM||#1| I was just thinking about
electromagnetic fields and magnetostatics. Magnetostatics is the
study of magnetic fields where they do not change or very
little. I was wondering if a static magnetic field is still
considered part of a Electromagnetic field? Since the magnetic
field is not changing, then there should be no electric field.
However a thought did occur which is that even though the
magnetic field may be steady, in reality it can never be in
perfect steady state because there is still small changes in the
currents and even in the material which created it which cause a
change. Even if the changes are over the lifetime of the
universe, that is still considered a change, very small but
still a change. So from this I assume that there is no such
thing as a magnetic field with out a electric field. It is just
that in say a bar magnet which does not seem to change, the
electric component of the electromagnetic field is very small
because there is very little change in the magnetic f