1. The problem statement, all variables and given/known data I am in Intermediate Electricity and Magnetism, and am working on review problems. I have a potentially very silly question: What physical direction is "horizontally north" (and similarly "horizontally south")? This seems like a counter-intuitive description to me (90 degrees?) and yet I keep encountering it, for example in the context such as "the wire carries a current horizontally to the south," "slides horizontally to the north." (these two statements NOT part of the same problem) Any insight much appreciated! 2. Relevant equations ?? 3. The attempt at a solution ??