A small current element I d, with d = 3 mm and I = 1.9 A, is centered at the origin. Find the magnetic field d at the following points.
(a) on the x axis at x = 3 m
(b) on the x axis at x = -6 m
(c) on the z axis at z = 3 m
(d) on the y axis at y = 3 m
All the answers should be in i,j,k coordinates