Answer:
Image result for A negatively charged particle moves to the right when it enters a magnetic field in the plane of the paper. What is the direction of the magnetic force on the charge?
1: A negatively charged particle moves in the plane of the paper in a region where the magnetic field is perpendicular to the paper (represented by the small X's - like the tails of arrows). ... (Note that because the charge is negative, the force is opposite in direction to the prediction of the right-hand rule.)