الملخص

In the present paper, the transport coefficients (drift velocity, mobility, and density of electron) in a positive column with an axial magnetic field of (0-6.5G) are calculated for Nitrogen plasma at different gas pressures between (0.2-5torr) with different electric discharge currents. The results show that both density and mobility of the electron increases with the increasing an axial magnetic field, contrary to that, drift velocity of electrons due to that increases of an axial magnetic field. This is a result of magnetic field confinement. This is due to the magnetic field confinement. These results show a good agreement with the previous studies (Ferreira and Ricard [12].