Problem 4: Two very long thin straight wires running parallel to the z-axis carry currents I (in –z-direction) and I2 (in +z-direction). The intersections of the wires with the x – y- plane and point P form 3 corners of a square, as shown in the figure below. (C) У (D) (E) (B) (A) I, У x-y-Plane View х Assuming |I1| < |I2|/2, which arrow drawn at point P in the x – y-plane could correctly represent the magnetic field vector B produced by I1 and I2 at P? (A) (B) (C) (D) (E)

Problem 4: Two very long thin straight wires running parallel to the z-axis carry currents I (in –z-direction) and I2 (in +z-direction). The intersections of the wires with the x – y- plane and point P form 3 corners of a square, as shown in the figure below. (C) У (D) (E) (B) (A) I, У x-y-Plane View х Assuming |I1| < |I2|/2, which arrow drawn at point P in the x – y-plane could correctly represent the magnetic field vector B produced by I1 and I2 at P? (A) (B) (C) (D) (E)