As shown in the figure below, two long parallel wires (1 and 2) carry currents of I1 = 2.94 A and I2 = 4.55 A in the direction indicated.
(a) Determine the magnitude and direction of the magnetic field at a point midway between the wires (d = 10.0 cm).
(b) Determine the magnitude and direction of the magnetic field at point P, located d = 10.0 cm above wire 1.