Question

what is current density ​

Answer 1

the amount of electric current flowing per unit cross-sectional area of a material.

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Answer 2

Answer:

In electromagnetism, current density is the amount of charge per unit time that flows through a unit area of a chosen cross section. ... In SI base units, the electric current density is measured in amperes per square metre.One coulomb is the amount of charge transferred by one ampère of current in one second of time [C = A s].