Cross-section of an infinite cylinder is shown. A current `I` uniformely distributed over its cross-section is flowing along its length. Now a cylinder of radius `R//2` is checked out of this. Then

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

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

Figure shows a long straight wire of a circular cross - section (radius a) carrying steady current I. The current I is uniformly distributed across this cross - section . Calculate the magnetic field in the region r lt a and r gt a

Figure shows a long straight wire of a circular cross-section (radius a) carrying steady current I. The current I is uniformly distributed across this cross-section. Calculate the magnetic field in the region r a.

A long straight solid metal wire of radius R carries a current I, uniformly distributed over its circular cross-section. Find the magnetic field at a distance r from axis of wire outside the wire.

The figure shows a long coaxial cable in which a current I flows down through the inner cylinder of radius a and the same current flows back up through the outer cylinder of radius 2a. The cylinders are insulated from each other and the current is uniformly distributed over the area of the cross-section in each cylinder. The strength of the magnetic field at a distance 3a//2 from the axis of the cable is

The figure shows a long coaxial cable in which a current I flows down through the inner cylinder of radius a and the same current flows back up through the outer cylinder of radius 2a. The cylinders are insulated from each other and the current is uniformly distributed over the area of the cross-section in each cylinder. The strength of the magnetic field at a distance 3a//2 from the axis of the cable is

A long straight wire of circular cross section is Made of non-Magnetic Material.The wire of radius (a).The wire carries a current (I) which is uniformly distributed over its cross-section.The energy stored per unit length in Magnetic field contained within the wire.