This remix is based on the original [b]Ejs Open Source Long Magnet Falling Through solenoid Model Java Applet
derived from http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=2391.0 by lookang
and original model by http://www.compadre.org/osp/items/detail.cfm?ID=10327 Magnet Falling Through Ring Model written by Francisco Esquembre.
This simulation was created as part of the MOSEM2 project.[/b]
(1) Include the Magnetic Field lines (Remix the Magnetic Dipole Field 3D codes by Wolfgang . http://www.opensourcephysics.org/items/detail.cfm?ID=12361]
(2) Magnetic field lines only drawn initially
(3) Link the Strength Magnetic field to magnetic field lines
To change the "shape of the magnetic field", please change the start_y position.