Current Enhancement in a Conducting Channel
Memorandum rept. 1984-1985
NAVAL RESEARCH LAB WASHINGTON DC
Pagination or Media Count:
By the use of a simple model, we show that the transverse motion of a current-carrying filament in an electrically conducting medium plasma may inductively produce a total current three times as large. An explanation of this phenomenon is given. These conclusions are valid as long as the channel conductivity is sufficiently high. They are a direct consequence of the Ampere- Faradays Laws and appear to be relatively insensitive to the geometry of the channel. The recent experimental observations cited above may be just one of the many manifestations of this electromagnetic phenomenon. Indeed, because of the simplicity but surprising nature of these phenomena, one may well wonder whether this and related phenomena, in particular the limiting value of F 3, have been noted elsewhere e.g., geomagnetic dynamo, magnetohydrodynamic layers, etc..
- Plasma Physics and Magnetohydrodynamics