I was assuming a scalar form because:
1) All values given to me in the problem statement are scalar, not vector.
2) I really have no idea how to do the problem. Doing that is my best attempt at the problem.
1. Sample calculation - If a satellite carrying a magnetometer flies at 300km over a current that is flowing at 100km w/ a magnitude of 150 μA/m2 (over a cross-section of ~5 km2), how big a ΔB will be seen by the magnetometer?
Assumptions (based on my understanding):
-Satellite altitude...