External Fields

The simulation shows a current carrying wire embedded in an external field, B = 0.75*y  i  + 0.75*x  j.   The resultant field is the vector sum of these two fields. Drag the wire and observe the force vector and the force/length on the wire in the yellow message box in the lower left hand corner.  Start

Caution: The scripter should insure that external fields have a divergence of zero.

Script Example

<script language="JavaScript"> 

function external(){


   document.BField.setDefault();


   document.BField.setDefaultRGB(0,0,0);


   w1=document.BField.addWire(0,-4,-2.0);


   document.BField.setDrag(w1,true);


   document.BField.setShowForce(w1,true);


   document.BField.setBFunctions("0.75*y", "0.75*x", -5, 5, -5, 5);


   document.BField.setShowFieldVectors(true);


}


</script>