The four wires that lie at the corners of a square of side a = 3.40cm are carrying equal currents i=1.80Amps into (+) or out of (-) the page. The center of the square is located at the origin.
A) Calculate the y component of the magnetic field at the center of the square.
Determine the y-components of each of these field vectors. Use the superposition principle to get the total field and its y-component
B) Calculate the x-component of the force on a 1.0-cm long piece of the lower right-hand wire, due to the other three wires.