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 with radial distance r as J=ar^(2) in a cyl

1.	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
Answer» `(65piaR^(4))/(2592)` `(25piaR^(4))/(72)` `(65pia^(2)R^(3))/(2938)` `(81pia^(2)R^(4))/(144)` ANSWER :A

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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

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