enjoy!

received an email and Facebook request for the following features! actually it is all possible already hahaha.

This is the most fantastic simulation for DC motor, thanks to Professor Fu-Kwun Hwang!

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• ##### Hi Loo Kang, I'm using your motor applet (http://weelookang.blogspot.sg/2010/06/ejs-open-source-direct-current.html) and really like your applet. Is it possible to make the following changes when you are free to better serve my teaching needs. Thanks.1) Adding arrows to show current direction instead of electrons motions which are too fast and too small to see.2) Adding an arrow for force like this video to show the direction and magnitude of the forcehttps://www.youtube.com/watch?v=Xi7o8cMPI0E&feature=player_embedded3) Adding a button to prevent angular acceleration (i.e. rotate at constant speed). The motor spins too fast after a while and is very hard to analyze. Alternative add in back emf so that it is more realistic and hence will have a maximum angular velocity.Thanks so much for helping the community of teaching andlearning.

1. click on the check-box velocity.

 request 1.Adding arrows to show current direction instead of electrons motions which are too fast and too small to see.must sure current flow check-box is selected (YELLOW) and velocity (MAGENTA)

2. click on the FBy check-box

 request 2) Adding an arrow for force like this video to show the direction and magnitude of the forcehttps://www.youtube.com/watch?v=Xi7o8cMPI0E&feature=player_embeddedalready available, select FBy checkbox!

3. slide Ff = -0.1*w  for example, Friction force = -0.1*angular velocity, the higher the lower the terminal rotational speed

 request 3) Adding a button to prevent angular acceleration (i.e. rotate at constant speed). The motor spins too fast after a while and is very hard to analyze. Alternative add in back emf so that it is more realistic and hence will have a maximum angular velocity.slide slide Ff = -0.1*w  for example, Friction force = -0.1*angular velocity, the higher the lower the terminal rotational speed

enjoy!

 http://weelookang.blogspot.sg/2010/06/ejs-open-source-direct-current.html Ejs Open Source Direct Current Electrical Motor Model Java Applet ( DC Motor ) « on: October 23, 2009, 06:14:56 PM » posted from:Singapore,,Singapore  author: fu-kwun hwang and lookang https://dl.dropboxusercontent.com/u/44365627/lookangEJSworkspace/export/ejs_users_sgeducation_lookang_DCmotor10.jar