The changes to the drift-diffusion equation are examined in two cases. First, if the electric field exhibits spatio-temporal variations, the corrections to the drift velocity and diffusion tensor are derived to first order in the field derivatives. Second, it is shown that, over times shorter ...
We present a calculation of the electric potential, field-aligned currents, and plasma convection caused by the penetration of the solar wind electric field into the magnetosphere. Ohm's law and the continuity equation of ionospheric currents are used. It is shown that the large-scale convection ...
In 1963 Ridley postulated that under certain bias conditions circuit elements exhibiting a current- or voltage-controlled negative differential resistance will separate into coexisting domains with different current densities or electric fields, respecti
Thus, by using the equation, we get the current flowing through the resistor is . Current Formula 2 (Power and Voltage) The power transferred is the product of supply voltage and electric current. Thus, we get current equals the power divided by voltage. Mathematically, Where stands for amper...
Some properties of the Current and Charge Integral Equation are studied. Particularly, the stability at low frequencies, the convergence speed under iterative solvers, and the accuracy of the radiated electric and magnetic field. The numerical solution is obtained using the multilevel fast multipole me...
The equation describes material polarization in response to an electric field where the first term captures immediate polarization, determined by electric susceptibility and applied field; the second term involves convolution of the dielectric response function and field history, characterizing cumulative polar...
In the article, we derive the equation governing the current helicity evolution. It is shown that the joint effect of the differential rotation and magnetic fluctuations in the stratified media can be responsible for the generation, maintenance and redistribution of the current helicity. The ...
The paper is concerned with the formulation of an A-V finite element method to simulate the electromagnetic field and current distribution in the windings of power transformers with nonnegligible circulating current. The algorithm combines field analysis and network analysis of the electric circuit in ...
Accordingly, the voltage control of magnetic anisotropy can be used to realize physical reservoir computing by spintronics devices without driving current or magnetic field. Here, we perform numerical simulation of the Landau-Lifshitz-Gilbert (LLG) equation and find that the computational capabilities of...
The critical current of a superconducting nanostructure can be suppressed by applying an electric field in its vicinity. This phenomenon is investigated throughout the fabrication and electrical characterization of superconducting tungsten-carbon (W-C) nanostructures grown by Ga+focused ion beam induced de...