A long, cylindrical tube of inner and outer radii a and b carries a current i distributed uniformly over its cross section. Find the magnitude of the magnetic field at a point (a) just inside the tube (b) just outside the tube.

A long, straight wire of radius R carries a current distributed uniformly over its cross section. The magnitude of the magnetic field is

A long, cylindrical wire of radius b carries a current i distributed uniformly over its cross section. Find the magnitude of the magnetic field at a point inside the wire at a distance a from the axis.

A long cylinder of wire of radius 'a' carries a current i distributed uniformly over its cross section. If the magnetic fields at distances rlta and Rgta from the axis have equal magnitude, then

A hollow cylindrical conductor of inner radius a and outer radius b carries a current I uniformly spread over its cross-section. Find the magnetic field induction at a point inside the body of the conductor at a distance r [where a lt r lt b ] from the axis of the cylinder.

A thin but long, hollow, cylindrical tube of radius r carries a current i along its length. Find the magnitude of the magnetic field at a distance r/2 from the surface (a) inside the tube (b) outside the tube.

Figure shows a cylindrical conductor of inner radius a & outer radius b which carries a current i unifromly spread over its cross section.Show that the magnetic field B for points inside the body of the conductor (i.e. a lt r lt b ) is given by. B=(mu_(0)i)/(2pi(b^(2)-a^(2)))(r^(2)-a^(2))/r .Check this formula for the limiting case of a=0 .

A cylindrical long wire of radius R carries a current I uniformly distributed over the cross sectionasl area of the wire. The magnetic field at a distasnce x from the surface inside the wire is

A long thick conducting cylinder of radius 'R' carries a current uniformly distributed over its cross section :

A hollow cylindrical conductor of radii a and b carries a current I uniformly spread over its cross-section. Prove that the magnetic field induction B for point inside the body of the conductor at a distance r from the axis of cylinder is given by, B=(mu_0mu_rI(r^2-a^2))/(2pi(b^2-a^2)r)