The effect of displacement current on whistler propagation of a fast‐rising magnetic field

1992 ◽  
Vol 4 (2) ◽  
pp. 375-380 ◽  
Author(s):  
K. Gomberoff ◽  
A. Fruchtman
Keyword(s):  
Magnetic Field ◽  
Displacement Current ◽  
Whistler Propagation

scholarly journals The influence of the earth's magnetic field on electric transmission in the upper atmosphere

1928 ◽  
Vol 121 (787) ◽  
pp. 260-285 ◽  
Keyword(s):  
Magnetic Field ◽  
Upper Atmosphere ◽  
Displacement Current ◽  
Philosophical Magazine ◽  
Electric Transmission ◽  
Joseph Larmor ◽  
Velocity Of Propagation ◽  
The Waves ◽  
A Current ◽  
Exciting Wave

In the ‘Philosophical Magazine’ for December, 1924, Sir Joseph Larmor showed how wireless waves can be transmitted to great distances, round the protuberance of the curved earth, and without excessive damping, if the transmission takes place in an ionised region high in the ultra-rarefied upper atmosphere, in which the number of effective ions increases upwards. Under the influence of the waves the ions oscillate, and thus produce a current which must be added, in the electrodynamic equations of the exciting wave, to the aetherial displacement current. The velocity of propagation is thus altered to c ', where c ' -2 = c -2 (1-4 π N e 2 c 2 / mp 2 )

scholarly journals VII. On the fundamental formulations of electrodynamics

1920 ◽  
Vol 220 (571-581) ◽  
pp. 207-245 ◽  
Keyword(s):  
Magnetic Field ◽  
Magnetic Force ◽  
Electromagnetic Interaction ◽  
Good Deal ◽  
Magnetic Polarity ◽  
Displacement Current ◽  
Linear Induction ◽  
Energy Relations ◽  
The Magnetic Field ◽  
Effective Representation

1. Modern electrical theory based on Maxwell’s concept of an æthereal displacement current, is generally regarded as being sufficiently complete in itself to cover all actions so far revealed to us, if we exclude those intra-atomic phenomena which probably involve some additional but not necessarily inconsistent action in their working. There, still, however exists a good deal of uncertainty as to the actual results of the development of this theory in certain directions, and no account has yet been taken of the great degree of latitude allowed by it in its simplest and most general form. For example, in most presentations of the theory of energy streaming in the electromagnetic field the discussion is given in a way which might lead one to believe that Poynting’s form of the theory is the only one conceivable. A single alternative has on one occasiont been suggested, but rather as an improvement on Poynting’s form than as an indication of its uncertainty. Whilst it cannot be denied that Poynting’s theory is probably the most appropriate one yet formulated, yet it must be recognised that there are an infinite number of fundamentally different forms each of which is itself perfectly consistent with Maxwell’s theory as expressed in his differential equations of electromagnetic interaction. Again, but now we are on a different plane, it has usually been stated that Maxwell’s theory is not of sufficient generality to cover the cases where there exists the complication of non-linear induction in ferromagnetic media. This view appears to have originated with the idea that the magnetic force is the fundamental æthereal vector of the magnetic field, whereas, as a matter of fact, the only consistent view of the energy relations of such a field leads to the conclusion that the magnetic induction is the true æthereal vector, the magnetic force being an auxiliary vector derived in the process of averaging the minute current whirls into their effective representation as a distribution of magnetic polarity.

scholarly journals Fast magnetic energy dissipation in relativistic plasma induced by high order laser modes

2016 ◽  
Vol 4 ◽  
Author(s):  
Y. J. Gu ◽  
Q. Yu ◽  
O. Klimo ◽  
T. Zh. Esirkepov ◽  
S. V. Bulanov ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Electric Field ◽  
Magnetic Energy ◽  
Collisionless Plasma ◽  
High Energy ◽  
Field Energy ◽  
Displacement Current ◽  
Particle In Cell ◽  
Magnetic Field Energy ◽  
High Energy Electrons

Fast magnetic field annihilation in a collisionless plasma is induced by using TEM(1,0) laser pulse. The magnetic quadrupole structure formation, expansion and annihilation stages are demonstrated with 2.5-dimensional particle-in-cell simulations. The magnetic field energy is converted to the electric field and accelerate the particles inside the annihilation plane. A bunch of high energy electrons moving backwards is detected in the current sheet. The strong displacement current is the dominant contribution which induces the longitudinal inductive electric field.

scholarly journals On Reactive Force in Thin Unclosed Conductor and Displacement Current

2021 ◽  
Vol 3 (5) ◽  
pp. 7-10
Author(s):  
Sergey A. Gerasimov
Keyword(s):  
Magnetic Field ◽  
Electric Current ◽  
Electromagnetic Fields ◽  
Momentum Density ◽  
Linear Momentum ◽  
The Self ◽  
Displacement Current ◽  
Reactive Force ◽  
Self Force ◽  
The Magnetic Field

The linear momentum density carried by electromagnetic fields creates the hidden force acting on the displacement current between ends of an unclosed conductor with alternative electric current. This force compensates the self-force exerted by the unclosed conductor with zero thin. The magnetic field produced by displacement current does not contribute to the force acting on the conductor. The unclosed conductor can move under action of the self-force. At small heights of cylindrical open conductor, the reactive force equivalent to the self-force becomes very large

scholarly journals On another proof of the formula E = m.c2 according to the rotary theory

2017 ◽  
Vol 1 (1) ◽  
pp. 13-20 ◽  
Author(s):  
Emil Ivanov Panov
Keyword(s):  
Magnetic Field ◽  
Magnetic Field Intensity ◽  
Albert Einstein ◽  
Special Theory ◽  
Point Of View ◽  
Magnetic Flux Density ◽  
Tangential Displacement ◽  
Displacement Current ◽  
Theory Of Relativity ◽  
The Magnetic Field

The paper is dedicated to one of the greatest breakthroughs in the classical physics at the beginning of the 20-th century – the appearance of the special theory of relativity of Albert Einstein in 1905. In it, by the help of the rotary theory, a new proof of the most famous formula in the world – the equation giving the connection between the energy and the mass of the bodies, is presented. Rotary theory appeared in 1998, trying to explain the electromagnetic phenomena from another point of view and to answer to series of questions connected with the basic electromagnetic laws, reaching the same results but giving simpler and direct answers compared with the classical electromagnetic theory of Maxwell. In it, by the help of the method of moments, the vector of the magnetic field intensity and the vector of the magnetic flux density are presented as moments of the vector of the current density of the tangential displacement current , claiming in this way that the magnetic field is a form of rotating electric field. The final result is a set of electromagnetic equations in fully electrical form, depicting all the electromagnetic phenomena from another point of view.

Electromagneto-Thermoelastic Plane Waves in Solids With Thermal Relaxation

1972 ◽  
Vol 39 (1) ◽  
pp. 108-113 ◽  
Author(s):  
A. H. Nayfeh ◽  
S. Nemat-Nasser
Keyword(s):  
Magnetic Field ◽  
Relaxation Time ◽  
Thermal Field ◽  
Plane Waves ◽  
Electric Displacement ◽  
Thermal Relaxation ◽  
Displacement Current ◽  
Perturbation Techniques ◽  
Thermoelastic Waves ◽  
The Magnetic Field

Perturbation techniques are used to study the influence of small thermoelastic and magnetoelastic couplings on the propagation of plane electromagneto-thermoelastic waves in an unbounded isotropic medium. The thermal relaxation time of heat conduction, and the electric displacement current are included in the analysis. It is found that the thermal field may affect transverse motions, and that the magnetic field may affect motions that occur parallel to its line of action.

scholarly journals The Electric Fields in Nonneutral Beam Models of Pulsar Magnetospheres

1981 ◽  
Vol 95 ◽  
pp. 29-30
Author(s):  
Dean F. Smith ◽  
Lorant A. Muth ◽  
Jonathan Arons
Keyword(s):  
Magnetic Field ◽  
Field Line ◽  
Electric Fields ◽  
Magnetic Field Line ◽  
Current Flow ◽  
Displacement Current ◽  
Point Dipole ◽  
Polar Cap ◽  
Considerable Difficulty ◽  
Mixed Nature

The electric fields in the polar cap region of the magnetosphere of a pairless orthogonal rotator are being calculated using a modified Poisson's equation which takes explicit account of the effect of the displacement current on the potential Φ. This is the first step in a program to determine how return currents are formed in these models and the resulting global current flow patterns. The potential is being calculated from 0.1 RL to 3 RL, where RL is the light cylinder radius, using known results for ⊘ at 0.1 RL with an inner last closed magnetic field line corresponding to that of a point dipole. Considerable difficulty is being encountered because of the mixed nature of the equation and the irregular boundaries. Possible methods of overcoming these difficulties are indicated.

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