current density


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Related to current density: conductivity, Drift velocity

current density

The amperage divided by the surface area to which it is applied, e.g., in electrosurgery.
See also: density
References in periodicals archive ?
They both have the same purpose: the calculation of the fields of current density and losses in the conductive model, located in the time variable magnetic field.
At a system backpressure of 30 kPa, with partial pressures of 145.8 kPa for [H.sub.2] and 20.1 kPa for [O.sub.2] inside the PEM fuel cell, the flow field M3 with ratio w/a = 1.05 presented the polarization curve with lowest activation and ohmic losses till at a current density of 0.75 A/[cm.sup.2].
Therefore the current density at any point, r, is given by
Since the corrosion current and the current density are not constant, an annual corrosion rate (CR) scenario is established for each current and current density obtained.
The peak current density was 3 mA/[cm.sup.2] while no clear oxidation peaks have been observed.
In the half-rise time method, the characteristic time [t.sub.0.5] corresponds to the current density that is 0.5 times the current density at steady-state situation [j.sub.ss].
(see [22]) where [i.sub.A] is the anodic current density ([i.sub.A] > 0) measurement points in each microstructure.
Herein, we investigated the redox reactions of solvated lithium ions at graphite in 1 M*LiCl[O.sub.4]/PC by chronopotentiometry, in situ AFM, and in situ Raman spectroscopy, revealing that these reactions were reversible at high current density and thus highlighting the key role of the latter parameter.
The electric field (E) and then the current density (J) distributions were obtained by means of the following relations:
Caption: Figure 5: Cycling performance and Coulombic efficiency of the electrode up to 1700 cycles at the current density of 1 mA/[cm.sup.2].
Predicted current density distributions in the eyes and the occipital lobe were calculated using computational head models derived from six tACS recipient MR image datasets.