I cannot figure how this works.. A wire carries a 7.00 A current along the x-axis and another wire carries a 6.00 A current along the y-axis. What is the magnetic field at point p located at x=4.00m and y=3.00m. Since each wire carries its own magnetic field, my instinct is saying that I just need to add the magnitude of the two fields. But that doesn't seem correct. A speedy reply would be greatly appreciated.