current density

American  

noun

Electricity.

1. the amount of current flowing through a given cross-sectional area in a given time interval: usually measured in amperes per square centimeter.

---

current density British  

noun

1.  J.  the ratio of the electric current flowing at a particular point in a conductor to the cross-sectional area of the conductor taken perpendicular to the current flow at that point. It is measured in amperes per square metre

---

Example Sentences

Upon carrying out electrocatalytic water splitting, the team observed that Ni-W5N4 alloy catalyzed the hydrogen evolution reaction, resulting in 10 mA/cm2 current density at a small overpotential of 11 mV.

From Science Daily • Nov. 15, 2023

"Essentially, we want electrodes that don't corrode, while still supporting the high electrical current density required for effective operation."

From BBC • Jul. 13, 2023

The city’s nearly completed plan calls for 8,152 housing units and 22,751 jobs near the station over 23 years, nearly quadruple current density.

From Seattle Times • Jan. 28, 2022

Theoretical models can relate the density then to the density now; thus, measurements of the abundance of deuterium today can give us an estimate of the current density of the universe.

From Textbooks • Oct. 13, 2016

For general purposes a current density of say ten to fifteen amperes per square foot may be used, but this may be considerably varied, so long as the upper limit is not greatly overpassed.

From On Laboratory Arts by Threlfall, Richard