The drawing shows an end-view of two wires. They are long, straight, and perpendicular to the plane of the paper. Their cross sections lie at the corners of a 0.5-m square. The current in wire 1 is going into the page and it is equal to 15 A and the current in wire 2 is going out of the page and it iis equal to 11 A respectively. What is the magnitude of the magnitic filed at one of the emty corner?