Choose one of the four motions listed in the form box in the upper right hand corner of the animation:
The charge moves at a constant speed along a straight line in the case of Inertial motion.
The charge moves periodically along a line segment (the velocity and acceleration of the charge are also periodic functions of time) in the case of SHO motion (i.e., Simple Harmonic Oscillation).
The charge moves at a constant speed about a circle in the case of Sync (Synchronous) motion.
The charge "wiggles" (i.e., repeatedly and alternately turns clockwise and counter-clockwise) in the case of Wiggler motion.
You may adjust the speed of the charge by sliding the bar in the lower left hand corner of the animation. The speed is given as a fraction of the speed of light. For example, V=0.25 is equal to one fourth the speed of light while V=0.5 is equal to one half the speed of light.
Press Stop/Run in order to stop or run the animation.
The curves intersecting at the charge represent the electric field lines of the charge.