Falling Magnet With Magnetic Field Lines

[engrg1]

This remix is based on the original 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.

Modifications:
(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.

Embed a running copy of this simulation
<applet code='users.sgeducation.engrg1.FallingMagnet.FallingMagnetWithFieldLines_pkg.FallingMagnetWithFieldLinesApplet.class' archive='http://www.phy.ntnu.edu.tw/ntnujava/ejsuser/130498/ejs_FallingMagnetWithFieldLines.jar' name='FallingMagnetWithFieldLines9725' id='FallingMagnetWithFieldLines9725' width='700' height='508' mayscript=true><param name='draggable' value='true'></applet>
Embed a running copy link(show simulation in a popuped window)
<a href='http://www.phy.ntnu.edu.tw/ntnujava/msg.php?smfejs=9725' target='smfejs'>Run simulation</a>

Full screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License

• Please feel free to post your ideas about how to use the simulation for better teaching and learning.
• Post questions to be asked to help students to think, to explore.
• Upload worksheets as attached files to share with more users.

Let's work together. We can help more users understand physics conceptually and enjoy the fun of learning physics!

[lookang]

building on engrg1 good work on the 2D field lines,

i will make it customized to the test question scenario

[lookang]

added constant velocity capability
but found a bug in the emf induced does not change direction with B = + or B = - values.

will have to put in the fix again
http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=2399.0
   Re: Ejs Open Source Long Magnet Falling Through solenoid Model Java Applet by LTL
« Reply #3 on: March 27, 2012, 09:04:16 am » posted from:SINGAPORE,SINGAPORE,SINGAPORE
   Reply with quoteQuote Modify messageModify Remove messageRemove Split TopicSplit Topic
[toggle author information] fixed bug
ejs_MagnetFallingltlxmlcoil01.jar (1632k) fix bug of NorthSouth pole corrected with correct electron rotation direction  after feedback by RVHS
* ejs_MagnetFallingltlxmlcoil01.zip (11.86 KB - downloaded 0 times.)
http://www.phy.ntnu.edu.tw/ntnujava/index.php?action=dlattach;topic=2399.0;attach=4689