Find the magntiude and diraction of the magnitude induction vector `B` (a) of an infinite palne carrying a current of linear density I, the vector `i`
Find the magntiude and diraction of the magnitude induction vector `B`
(a) of an infinite palne carrying a current of linear density I, the vector `i` is the same at all points of the plane,
(b) of two parallel infinite planes carrying currents of linear densities a dn -1, the vectors `i` and `-i` are cohnstant at all points of the corresponding planes.
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