en.wikipedia.org/wiki/Magnetic_field_lines

A magnetic field is the magnetic effect of electric currents and magnetic materials.
The magnetic ..... Magnetic poles cannot exist apart from each other as electric
charges can, but always come in ...

www.answers.com/Q/Since_magnetic_field_lines_are_just_constructs_the_field_cannot_contain_energy

Since magnetic field lines are just constructs the field cannot contain energy? ...
Magnetic Field Lines Show Magnitude and Direction: When the lines of the ...

arxiv.org/pdf/1111.4354

pressions for the energy density and energy flux in an electromagnetic field. ...
are sufficiently complicated that solutions to Maxwell's equations cannot .... Lines
of magnetic flux always occur in closed loops; lines of electric field ..... to take
additional derivatives of the equations, since this allows us to construct separat...

www.euro-fusion.org/faq/could-you-tell-me-how-the-magnetic-fields-contain-the-plasma-and-how-these-fields-are-set-up-and-powered/

By setting up magnetic field lines toroidally around the interior of the tokamak, the
ions and electrons in the plasma are forced to travel tightly around these field ...

solarscience.msfc.nasa.gov/papers/garyga/StretchingPaper.pdf

region cannot be obtained since there is no closed form solution for the non-force
-free, ... magnetic field lines originate in a high-beta plasma region,. > 1, in ....
region field and the plasma it contains, by reconstructing the coronal field using a
novel ... field only) is not sufficient to produce the active region corona. The r...

adsabs.harvard.edu/full/1968IAUS...35..471S

At low heights, the magnetic-field lines are closed but, at sufficiently great heights
, the ... Since a flare seems to occur in the chromosphere and corona, and has no
... If we now consider a simple bipolar magnetic region and construct a field ... yet
the associated magnetic field certainly contains 'free energy', which can be...

physics.stackexchange.com/questions/10565/does-a-magnetic-field-do-work-on-an-intrinsic-magnetic-dipole

May 30, 2011 ... Is it correct to say that magnetic fields DO do work, but only on pure dipoles (not
on ... But I thought that maybe since the formula for the force on a dipole F ... You
can construct a pure magetic dipole from a vanishingly small current loop. ..... so
a body moving in an external magnetic ﬁeld cannot gain energy.

adsabs.harvard.edu/full/1995SoPh..161..289L

In the corona, both ends of magnetic field lines in closed regions are rooted in the
... with only r-dependence, inevitably develops both r and 9 dependence when
..... However, such solutions contain unphysical singularities, since the energy .....
to a constant-a field (with, for example, a = 0.1) cannot be obtained by footpoint ....

bearsoft.co.uk/MagF2.html

A not too mathematical look at some of the properties of magnetic fields and ...
Faraday, Faraday's law, magnetic flux, energy density flux, magnetic energy
density flux ... have used to construct wonderful technologies are just the by
products of the ... When we try to calculate the number of lines of force which
surround the ...

onlinelibrary.wiley.com/doi/10.1029/JA093iA08p08583/pdf

Aug 1, 1988 ... question of how magnetic field lines lie in realistic three- dimensional ... that an
ideal plasma cannot tolerate an electric field, so it ... Since the evolution of the
magnetic field depends .... continuous behavior of the field line organization
contains ... similar to the dynamics of a closed field line only if the e...