I think I got it; so if I were to use Biot-Savart's law, the currents would end up cancelling each other out, no? And if there's no current, there's no field. So no direction.
Oh, does that mean that the bigger current dictates the direction of the magnetic field at point P?
So, if the current in the top wire is greater than the bottom wire, the direction of the field at P is into the page, but if the current in the bottom wire is greater, then the direction is out...
Homework Statement
The problem asks to find the direction of the magnetic field at point P, which is at the center of 2 separate semi-circle wires that form a circle. The current in each wire flows in the same direction (to the right). I attached a picture below.
Homework EquationsThe Attempt...