[" (A) The current density varies with radial distance "r" as "],[J=ar^(2)," in a cylindrical wire of radius "R." The current "],[" passing through the wire between radial distance "],[R/3" and "R/2" is,"]

The current density varies with radial distance r as J=ar^(2) in a cylindrical wire of radius R. The current passing through the wire between raidal distance R//3 and R//2 is

The current density varies radical distance r as J=ar^(2) , in a cylindrical wire of radius R. The current passing through the wire between radical distance R//3 and R//2 is,

The current density varies radical distance r as J=ar^(2) , in a cylindrical wire of radius R. The current passing through the wire between radical distance R//3 and R//2 is,

The current density varies radical distance r as J=ar^(2) , in a cylindrical wire of radius R. The current passing through the wire between radical distance R//3 and R//2 is,

A cylindrical wire if radius R = 2 mm is of uniform area of cross-section. The current density through a cross-section varies with radial distance r as J = ar^(2) , where a =3.2 xx 10^(11)A//m^(2) and r is in metres. What is the current through the outer portion of the wire between radial distances R//2 and R?

The current density in a wire of radius a varies with radial distance r as J=(J_0r^2)/a , where J_0 is a constant. Choose the incorrect statement.