Instructions: Click buttons to add charges or reset.
Drag charges to move them.
Field lines are calculated numerically and may sometimes be a little inaccurate.
PointChargeMode=false
Physlets courtesy of
This E-field Applet by N. Alberding & A. Kurn
Physlets®, i.e., the Java applets themselves, are a registered trademark of Wolfgang Christian.
Use Preview on the Mac to grab a screen image and save in the desired format
On Windows use Alt- PrintScreen key to capture a window to the clipboard.
Scriblink A collaorative whiteboard. (Upload various formats.)