16. There are now six scenarios with two solenoids and a point P which is exactly halfway between them and along the symmetry axis of each. Some solenoids have a loop density n while others have a loop density 2n. Rank the magnetic field at point P from the largest in the + direction to the largest in the direction. If any field is zero, explicitly state that. Explain your reasoning. A 1 1 1 1 - B C D P E F