Attractive force / field

The typical trajectory of the test particle is an ellipse similar to gravitational orbits. Click on the moving charge to catch it then “throw” it to set new initial conditions. The force is tangent to the lines of force.

• To observe how a single negative charge will experience a force due to the presence of a single fixed positive charge. 
• To illustrate that the force is always tangent to the lines of force.

Click on the moving charge to catch it then throw it away with new initial conditions.