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An infinitesimal current element located at the origin ( x = y = z = 0) carries current I in the positive y-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. (i) x = L, y = 0, z = 0; (ii) x = 0, y = L, z = 0; (iii) x = 0, y = 0, z = L; (iv) x =
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