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written by Fu-Kwun Hwang and Loo Kang Wee
The Direct Current Electrical Motor Model illustrates a simple direct current (DC) motor. The model shows an external magnet (called the stator because it's fixed in place) and a turning coil of wire called an armature ( rotor or coil, because it rotates). The armature, carrying current provided by the battery, is an electromagnet, because a current-carrying wire generates a magnetic field; invisible magnetic field lines are circulating all around the wire of the armature.  The key to producing motion is positioning the electromagnet within the magnetic field of the permanent magnet (its field runs from its north to south poles). The armature experiences a force described by the left hand rule. This interplay of magnetic fields and moving charged particles (the electrons in the current) results in the magnetic force (depicted by the green arrows) that makes the armature spin because of the torque. Use the slider current I to see what happens when the flow of current is reversed. The checkbox current flow & electron flow alows different visualization since I = d(Q)/dt and Q= number of charge*e. The Play & Pause button allows freezing the 3D view for visualizing these forces, for checking for consistency with the left hand rule .

Please note that this resource requires Java (JRE).
View the source code document attached to this resource
Subjects Levels Resource Types
Classical Mechanics
- Applications of Newton's Laws
= Dynamic Torque
- Rotational Dynamics
= Moment of Inertia
= Rotational Energy
Electricity & Magnetism
- DC Circuits
= Currents
= Ohm's Law
- Electromagnetic Induction
= Induced Currents and Forces
= Motors and Generators
- Magnetic Fields and Forces
= Fields and Currents
= Force on Moving Charges
= Force on Wires
= Magnetic Fields
= Torques on Coils
- Lower Undergraduate
- High School
- Instructional Material
= Simulation
Intended Users Formats Ratings
- Learners
- Educators
- General Publics
- application/java
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Mirror:
http://www.phy.ntnu.edu.tw/ntnuja…
Access Rights:
Free access
License:
This material is released under a Creative Commons Attribution-Share Alike 3.0 license.
Rights Holder:
Loo Kang Wee
Record Creator:
Metadata instance created November 3, 2011 by wee lookang
Record Updated:
June 13, 2014 by Andreu Glasmann
Last Update
when Cataloged:
November 18, 2011
Other Collections:

ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
F. Hwang and L. Wee, Computer Program DIRECT CURRENT ELECTRICAL MOTOR MODEL (2011), WWW Document, (http://www.compadre.org/Repository/document/ServeFile.cfm?ID=11529&DocID=2476).
AJP/PRST-PER
F. Hwang and L. Wee, Computer Program DIRECT CURRENT ELECTRICAL MOTOR MODEL (2011), <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=11529&DocID=2476>.
APA Format
Hwang, F., & Wee, L. (2011). Direct Current Electrical Motor Model [Computer software]. Retrieved October 25, 2014, from http://www.compadre.org/Repository/document/ServeFile.cfm?ID=11529&DocID=2476
Chicago Format
Hwang, Fu-Kwun, and Loo Kang Wee. "Direct Current Electrical Motor Model." http://www.compadre.org/Repository/document/ServeFile.cfm?ID=11529&DocID=2476 (accessed 25 October 2014).
MLA Format
Hwang, Fu-Kwun, and Loo Kang Wee. Direct Current Electrical Motor Model. Computer software. 2011. Java (JRE). 25 Oct. 2014 <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=11529&DocID=2476>.
BibTeX Export Format
@misc{ Author = "Fu-Kwun Hwang and Loo Kang Wee", Title = {Direct Current Electrical Motor Model}, Month = {November}, Year = {2011} }
Refer Export Format

%A Fu-Kwun Hwang
%A Loo Kang Wee
%T Direct Current Electrical Motor Model
%D November 18, 2011
%U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=11529&DocID=2476
%O application/java

EndNote Export Format

%0 Computer Program
%A Hwang, Fu-Kwun
%A Wee, Loo Kang
%D November 18, 2011
%T Direct Current Electrical Motor Model
%8 November 18, 2011
%U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=11529&DocID=2476


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The AIP Style presented is based on information from the AIP Style Manual.

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Direct Current Electrical Motor Model:

Is Based On Easy Java Simulations Modeling and Authoring Tool

The Easy Java Simulations Modeling and Authoring Tool is needed to explore the computational model used in the Direct Current Electrical Motor Model.

relation by Wolfgang Christian

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