Question

what is current density , discuss it​

Answer 1

The current density vector is defined as a vector whose magnitude is the electric current per cross-sectional area at a given point in space, its direction being that of the motion of the positive charges at this point. In SI base units, the electric current density is measured in amperes per square metre.

${\mathfrak{\red{I\:hope\: </p><p>it\:helps}}}$

Answer 2

Explanation:

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