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Dielectric and permeability
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Cole, K. D. |
| Copyright Year | 1982 |
| Description | Using the unabridged Maxwell equations (including vectors D, E and H) new effects in collisionless plasmas are uncovered. In a steady state, it is found that spatially varying energy density of the electric field (E perpendicular) orthogonal to B produces electric current leading, under certain conditions, to the relationship P perpendicular+B(2)/8 pi-epsilon E perpendicular(2)/8 pi = constant, where epsilon is the dielectric constant of the plasma for fields orthogonal to B. In steady state quasi-two-dimensional flows in plasmas, a general relationship between the components of electric field parallel and perpendicular to B is found. These effects are significant in goephysical and astrophysical plasmas. The general conditions for a steady state in collisionless plasma are deduced. With time variations in a plasma, slow compared to ion-gyroperiod, there is a general current, (j*), which includes the well-known polarisation current, given by J*=d/dt (ExM)+(PxB)xB B(-2) where M and P are the magnetization and polarization vectors respectively. |
| File Size | 2554920 |
| Page Count | 35 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19830006856 |
| Archival Resource Key | ark:/13960/t4cp1xv6v |
| Language | English |
| Publisher Date | 1982-07-01 |
| Access Restriction | Open |
| Subject Keyword | Plasma Physics Earth Magnetosphere Magnetic Permeability Collisionless Plasmas Dielectric Properties Earth Ionosphere Magnetic Fields Electric Fields Maxwell Equation Space Plasmas Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
