The name is absent



creates tiny atomic current loops, which produce magnetic fields. When an
external magnetic field is applied to a material, these current loops will tend to
align in such a way as to oppose the applied field. This may be viewed as an
atomic version of Lenz's law: induced magnetic fields tend to oppose the change,
which created them. Materials in which this effect is the only magnetic response
are called diamagnetic. All materials are inherently diamagnetic, but if the atoms
have some net magnetic moment as in paramagnetic materials, or if there is
long-range ordering of atomic magnetic moments as in ferromagnetic materials,
these stronger effects are always dominant (
Nave, 2003).

It is interesting to note that the three basic physical constants in
electromagnetism: the
electric permittivity of vacuum, the magnetic permeability
ofvacuum
and the velocity of light in vacuum are linked by the equation:

(55)                 εo μo c2 = 1

Taking into account the presented basic laws in the classical electrodynamics we
could try to model the electromagnetic field structure and effects taking place in
different compartments of the neural cells - dendrites, soma and axons.

30



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