ffecting the plasma over large distances (ie. greater than the Debye length). But the existence of charged particles causes the plasma to generate and be affected by magnetic fields.  This can and does cause extremely complex behavior, such as the generation of plasma double layers, an object which separates charge over a few tens of Debye lengths. The dynamics of plasmas interacting with external and self-generated magnetic fields are studied in the academic discipline of magnetohydrodynamics.චුම්භකනය[සංස්කරණය]A plasma in which the magnetic field is strong enough to influence the motion of the charged particles is said to be magnetized. A common quantitative criterion is that a particle on average completes at least one gyration around the magnetic field before making a collision (ie. ωce/νcoll>1{\displaystyle \omega _{ce}/\nu _{coll}>1} where ωce{\displaystyle \omega _{ce}} is the "electron gyrofrequency" and νcoll{\displa