A pair of point charges, q = +8.50 μC and q′ = −4.50 μC are moving as shown in the figure below with speeds v = 9.50×104 and v′ = 7.00×104 m/s. The charges are at the locations shown in the figure. What is the direction of the magnetic field produced at the origin due to these two charges? +x −x +y −y out of the screen into the screen the field is zero at the origin