Dynamics

A positive test charge is placed into a potential field consisting a point charge and a background field in the -x direction.  Both the test charge and the fixed charge can be dragged to new positions.  Observe the dynamics.  Start

Script Example

<script language="JavaScript"> 
function dynamics(){
   	document.EField.setDefault();
	document.EField.setNoDrag(0);
   	document.EField.setShowForce(0);
	document.EField.setChargeRGB(0,0,0);
   	document.EField.setChargeLabel("+");  
   	document.EField.addCharge(0,0,2);
	document.EField.setShowFieldVectors(1);
   	document.EField.setShowContours(1);
	document.EField.setShowForce(1);
	document.EField.setShowVelocity(1);
	document.EField.setChargeRGB(128,0,0);
 	document.EField.setChargeTrail(400);
   	document.EField.addTestCharge(4.0,-0.2,-0.5,-0.1);
 	document.EField.forward();
}
</script>

Documentation