Chapter 16 - Electric Potential, Energy, and Capacitance - Learning Path Questions and Exercises - Conceptual Questions - Page 590: 3

Since total energy remains same, approaching a negative charge means moving towards a region of lower electric potential. Positive charges tend to move toward regions of lower potential, thus losing potential energy and gaining kinetic energy thus speeds up.

Since total energy remains same, approaching a negative charge means moving towards a region of lower electric potential. Positive charges tend to move toward regions of lower potential, thus losing potential energy and gaining kinetic energy thus speeds up.