Four Long, Straight Wires Are Parallel to Each Other; and Their

Four long, straight wires are parallel to each other; and their cross-section forms a square.Each side of the square is 0.020 m as shown in the figure.If each wire carries a current of 8.0 A in the direction shown in the figure, determine the magnitude of the total magnetic field at P, the center of the square.

A) 5.1 × 10^-5 T
B) 1.1 × 10^-4 T
C) 1.7 × 10^-4 T
D) 2.3 × 10^-4 T
E) zero tesla