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In this paper an analysis of the first-order distortion to the current distribution in a short single-turn circular coil of high resistivity is presented. Both the in-phase and quadrature components arc given for different axial positions.
1. Introduction
There are several practical situations where short single-turn coils are used; these include induction heaters, plasma machines, magnetic forming of metals and radio-frequency circuits. In most of these applications the inductive impedance of the coil is greatly in excess of its resistive component and the current distribution may be analyzed for the greater part in terms of an infinite conductivity model (Barrault and McCartan 1966).
In other applications such as ohmic heaters and low-frequency air-cored magnetic field coils this situation is reversed and the current distribution is largely governed by the resistive component.
This paper presents an analysis of the first-order distortion to the current distribution resulting in this latter case from a weak inductive component. [ABSTRACT FROM AUTHOR]

In this paper we consider how the electric potential varies in space and time during the formation of a plasma sheath. We give the variation of the wall potential in time, the potential profile at various stages of the sheath formation and the variation of the total current at the wall.
In this paper we extend the well-established static theory of plasma sheaths and discuss the growth of a sheath near a plane perfectly absorbing wall. Suppose that we introduce a plane perfectly absorbing sheet of material into a plasma which is electrically neutral and consists of electrons and a single type of singly ionized atoms. The mobile electrons will in general have a much higher velocity than the more massive ions and so initially more electrons than ions will strike the wall, and be absorbed, per unit time. Thus the wall will initially acquire a net negative charge. This charge will repel the electrons approaching the wall from the main body of the plasma and attract the ions. The net charge on the wall will continue to increase until the current density at the wall becomes zero. We wish to investigate the rate of growth of the potential of the wall and the profile of the electric potential at any time on the basis of a simple model. [ABSTRACT FROM AUTHOR]

The reverse current and power dissipated in controlled avalanche rectifier chains are calculated. Analysis indicates that a very large number of such rectifiers can be safely cascaded in series without using sharing components. This is advantageous over conventional silicon rectifier chains where bulky and expensive capacitors have to be added to avoid voltage mis-sharing effects. An example is given for the design of a rectifier chain suitable for the high voltage supply of particle accelerators.
In this paper it is suggested that the use of controlled avalanche rectifiers solves this problem and a very large number of such rectifiers can be safely cascaded in series without the need of sharing capacitances. [ABSTRACT FROM AUTHOR]

This paper describes a further stage of the extension of the Ampre - Neumann electrodynamics. It examines the relationship between the three existing three laws for a pair of current elements and shows how all unsymmetries disappear when the elements form part of separate closed circuits. F. E. Neumann's proof of the equivalence of his and Ampre's formula is reproduced, as no translation of the original memoir appears to exist. By resolving the macroscopic circuit into its microscopic current-carrying elements it is shown, for the first time, that Neumann's force law holds for classical current elements of the same circuit.
Two new and unexpected results have been obtained. The first predicts that forces acting between a pair of microscopic current elements should be indistinguishable from those occurring between a pair of excited diamagnetic atoms. This has an important bearing on the Meissner diamagnetism of super-conductors and persistent currents. Recognizing that the Neumann potential of a pair of current elements must be accompanied by a mutual torque leads to the second result, which attributes the electromotive force, induced in one element by another, to the rate of change to mutual torque. This behaviour of current elements can only be understood if the current-carrying atom is a dipole pivoting about the lattice site with the reaction torque being provided by electron interactions. [ABSTRACT FROM AUTHOR]

Announces the holding of the Seventh Annual Conference of the Neuroelectric Society on November 20-23, 1974 in New Orleans, Louisiana. Presentation of papers on the effects of electrical currents on behavioral and physiological systems; Other topics that will be discussed at the conference.