a cylindrical conductor of radius R carries a current along its length.

the current density J,however,is not uniform over the crosssection of the conductor but is a function of the radius as

J = br,

where b is a constant.

find the expression for the magnetic field B:

1. at a distance r1

2. at a distance r2 > R,

measured from the axis

Deepak Patra , 11 Years ago

Grade upto college level