
Electric Current Circuits in Astrophysics
... because a strictly steady state pair creation is not possible. It is clear that the parallel electric field momentarily vanishes as soon as the charge density reaches the value τGJ . However, to produce this GJ-density one needs a very strong parallel electric field to exist. Actually, the strong ti ...
... because a strictly steady state pair creation is not possible. It is clear that the parallel electric field momentarily vanishes as soon as the charge density reaches the value τGJ . However, to produce this GJ-density one needs a very strong parallel electric field to exist. Actually, the strong ti ...
The Sunspots - Scientific Research Publishing
... some regions of the photosphere, and their relationship with the appearance, properties and life time of the Sunspots. A large amount of observational data has been accumulated of the subject [1]; in particular, it is well known that the presence of Sunspots on the solar disk is related to a substan ...
... some regions of the photosphere, and their relationship with the appearance, properties and life time of the Sunspots. A large amount of observational data has been accumulated of the subject [1]; in particular, it is well known that the presence of Sunspots on the solar disk is related to a substan ...
The Electron-Positron Sea
... “My suggestion is that the Aepinus' fluid consists of exceedingly minute equal and similar atoms, which I call electrions, much smaller than the atoms of ponderable matter; and that they permeate freely through the spaces occupied by these greater atoms and also freely through space not occupied by ...
... “My suggestion is that the Aepinus' fluid consists of exceedingly minute equal and similar atoms, which I call electrions, much smaller than the atoms of ponderable matter; and that they permeate freely through the spaces occupied by these greater atoms and also freely through space not occupied by ...
Flux Displacement in Rectangular Iron Sheets and Geometry
... t=1/ω are shown in Figures 13 to 15. The flux densities shown do result from eddy currents and their respective fields as displayed in Figures 4 to 11. However, it needs to be said that eddy currents are driven by a change in flux density and not in field intensity. This change, being subject to sat ...
... t=1/ω are shown in Figures 13 to 15. The flux densities shown do result from eddy currents and their respective fields as displayed in Figures 4 to 11. However, it needs to be said that eddy currents are driven by a change in flux density and not in field intensity. This change, being subject to sat ...
ch 27 - NMSU
... Field lines are not lines of force • The lines tracing the magnetic field crossed through the velocity vector of a moving charge will give the direction of force by the ...
... Field lines are not lines of force • The lines tracing the magnetic field crossed through the velocity vector of a moving charge will give the direction of force by the ...
Representing Vector Fields Using Field Line Diagrams
... Because it is difficult to work with a 3-dimensional field line diagram such as the one on the right, we usually draw instead a 2-dimensional version, as shown below. ...
... Because it is difficult to work with a 3-dimensional field line diagram such as the one on the right, we usually draw instead a 2-dimensional version, as shown below. ...
Teaching Magnetism with Home
... In order to hold the rectangular coil in place we have a platform (Figure 5e) and a springlever assembly (Figure 5f). Two vertically fixed aluminium strips AC and BD are electrically connected through the ports A and B to the DC power supply PS#1 (Figure 5g). The horizontal pins C and D (Figure 5e) ...
... In order to hold the rectangular coil in place we have a platform (Figure 5e) and a springlever assembly (Figure 5f). Two vertically fixed aluminium strips AC and BD are electrically connected through the ports A and B to the DC power supply PS#1 (Figure 5g). The horizontal pins C and D (Figure 5e) ...
Aurora

An aurora is a natural light display in the sky, predominantly seen in the high latitude (Arctic and Antarctic) regions. Auroras are produced when the magnetosphere is sufficiently disturbed by the solar wind that the trajectories of charged particles in both solar wind and magnetospheric plasma, mainly in the form of electrons and protons, precipitate them into the upper atmosphere (thermosphere/exosphere), where their energy is lost. The resulting ionization and excitation of atmospheric constituents emits light of varying colour and complexity. The form of the aurora, occurring within bands around both polar regions, is also dependent on the amount of acceleration imparted to the precipitating particles. Precipitating protons generally produce optical emissions as incident hydrogen atoms after gaining electrons from the atmosphere. Proton auroras are usually observed at lower latitudes. Different aspects of an aurora are elaborated in various sections below.