3. Two long, straight parallel wires separated by a distance of 0.20 m carry currents in opposite directions, as indicated in the diagram below. I = 10 A 0.20 m P 12=5A 0.05 m R Point P is at the midpoint between the wires and point R is 0.05 m below wire 2, as indicated. (a) What is the direction of the magnetic field created by at point P? (b) What is the direction of the magnetic field created by 12 at point P? (c) What is the magnitude and direction of the net magnetic field at point P due to I and I? (d) What is the magnitude and direction of the net magnetic field at point R due to I and I?