Haven't read beyond their derivations of 1/ the force due to the charges induced in the wire by the test charge and 2/ the force proportional to the current in the resistive wire, but these two are clearly real, whether the formulae they propose are correct or not.
The first one doesn't deserve much comment, it is elementary electrostatics. The second is more subtle, it is due to a surface distribution of charges which doesn't require the presence of external charges, whose existence I simply had no idea and which I now realize have to be there. Thanks for posting this Harry, most enlightening. It might even have relevance to the Celani electromigration experiments wrt my DIESECF hypothesis for cold fusion! Michel 2009/9/14 Harry Veeder <[email protected]>: > fyi > Harry > > Foundations of Physics > © Plenum Publishing Corporation 1999 > 10.1023/A:1018874523513 > > The Electric Field Outside a Stationary Resistive Wire Carrying a > Constant Current > > A. K. T. Assis, W. A. Rodrigues Jr. and A. J. Mania > > Abstract We present the opinion of some authors who believe there is no > force between a stationary charge and a stationary resistive wire > carrying a constant current. We show that this force is different from > zero and present its main components: the force due to the charges > induced in the wire by the test charge and a force proportional to the > current in the resistive wire. We also discuss briefly a component of > the force proportional to the square of the current which should exist > according to some models and another component due to the acceleration > of the conduction electrons in a curved wire carrying a dc current > (centripetal acceleration). Finally, we analyze experiments showing the > existence of the electric field proportional to the current in resistive > wires. > > complete paper available here: > http://www.springerlink.com/content/q6634pp556m08500/fulltext.html > >
