Question

An infinitesimal current element located at the origin (x=y=z=0) carries current I in the negative z -direction.

Rank the following locations in order of the strength of the magnetic field that the current element produces at that location, from largest to smallest value.

1) x=L, y=0, z=0
2) x=0, y=L, z=0
3) x=0, y=L, z=L
4) x=0, y=0, z=L
5) x=L, y=0, z=L
6) x=L, y=L, z=0

Answer 1

(1st): - 4) x=0, y=0, z=L
(2nd): - 1) x=L, y=0, z=0, 2) x=0, y=L, z=0, 3) x=0, y=L, z=L, 5) x=L, y=0, z=L
(3rd):- 6) x=L, y=L, z=0