As shown in the figure, a very long straight wire carrying a current of I is at a perpendicular distance d = 11 cm from a point P. Point P is at the center of a circular arc of a radius R = 4 cm that spans over an angle, and carries a current I = 14 A. d 1 a) The magnetic field vector at point P due to the straight wire only is B=0+03 -1.82x10-5 T. Find I. I = b) [5 points] The magnetic field vector at point P due to the arc only is B=0 +03+7.27x10-5 T. Find 0. 0=