The magnetic field due to a conductor fo unifrom cross section of radius `a` and carrying a steady current is represented by

The magnetic field due to a straight conductor of uniform cross - section of radius a and carrying a steady current is represented by

Show graphically the variation of magnetic field due to a straight conductor of uniform cross-section or radius ‘a’ and carrying steady currently as a function of distance r (a > r) from the axis of the conductor.

A wire of non-uniform cross-section is carrying a steady current. Along the wire

A wire of non-uniform cross-section is carrying a steady current. Along the wire