I have the formula W=q[tex]\Delta[/tex]V. Where [tex]\Delta[/tex]V is the change in electric potential, and q is a charge. Say I wanted to move a point charge some distance in an electric field (created by another point charge) and calculate the work associated with this movement. Does the q in the above equation relate to the point charge I'm moving, or the one that is creating the electric field? I know V for a point charge is kq/r, and I would use the charge of the point charge I'm moving there. Thanks.