Forces

A charge can show the force.  Five unknown charges are shown on the screen along with vectors representing the forces on each charge.  You can click-drag on any charge to change its position.  How many charges are alike?  Start

Script Example

<script language="JavaScript"> 
function forces(){
    document.EField.setDefault();
    document.EField.setShowTime(0);
    document.EField.setNoDrag(0);
    document.EField.setShowForce(1);
    document.EField.setChargeRGB(0,0,0);
    document.EField.addCharge(-2,0,3);
    document.EField.addCharge(2,0,-2);
    document.EField.addCharge(0,2,-2);
    document.EField.addCharge(0,-2,2);
    document.EField.addCharge(0,0,2);
}
</script>

Documentation