Question

Consider the specific example of a positive charge q moving in the +x direction with the local magnetic field in the +y direction. In which direction is the magnetic force acting on the particle? Express your answer using unit vectors (e.g., i^- j^). (Recall that i^ is written \hat i (or alternatively i_unit can be used.))

Answer 1

z+ direction

Step-by-step explanation:

Imagine x+ and y+ as normal coordinate system on a paper. By using the right hand rule with thumb pointing to the direction of charge q moving (x+) and fingers pointing in the direction of the magnetic field (y+). The direction of the magnetic force would be coming out of your palm, or out of the paper surface in the z+ direction.