The current density is a solid cylindrical wire a radius R, as a function of radial distance r is given by `J(r )=J_(0)(1-(r )/(R ))` . The total current in the radial regon r = 0 to `r=(R )/(4)` will be :

A cylindrical wire of radius R has current density varying with distance r form its axis as J(x)=J_0(1-(r^2)/(R^2)) . The total current through the wire is

A cylindrical wire of radius R has current density varying with distance r form its axis as J(x)=J_0(1-(r^2)/(R^2)) . The total current through the wire is

A current is flowing through a cylinderical conductor of radius R, such that current density at any cross-section is given by J = J_(0)(1-(r )/(R )) , where r is radial distance from axis of the cylinder .Calculate the total current through the cross-section of the conductor.

A current is flowing through a cylinderical conductor of radius R, such that current density at any cross-section is given by J = J_(0)(1-(r )/(R )) , where r is radial distance from axis of the cylinder .Calculate the total current through the cross-section of the conductor.

A solid ball of radius R has a charge density rho given by rho = rho_(0)(1-(r )/(R )) for 0le r le R The electric field outside the ball is :

A solid ball of radius R has a charge density rho given by rho = rho_(0)(1-(r )/(R )) for 0le r le R The electric field outside the ball is :