Question

The magnetic field lines due to a current through a straight conductor are in concentric circles, but where are the magnetic poles located?

Answer 1

Dear Student!!

There is not any defined poles of the magnetic field lines around a straight current carrying conductor. But if we take two points on the circular field, from one field is originating and at other point field is terminating. Then the 1st point is taken as the north pole and the 2nd point is taken as the south pole.