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written by Andrew Duffy
content provider: Wolfgang Christian
This interactive simulation models a velocity selector, an instrument used in accelerator mass spectrometry. The velocity selector consists of uniform electric and magnetic fields, perpendicular to one another. Either field can be turned on or off as the user controls mass and initial velocity of the particle, charge, and magnitude/direction of the fields. Turn both fields on and observe the behavior of the particle. Under what circumstances will it travel through the region undeflected?

A set of accompanying questions guides users in understanding the relationship between the fields.

This velocity selector model was created using the Easy Java Simulations (Ejs) modeling tool. It is distributed as a ready-to-run (compiled) Java archive. Ejs is a part of the Open Source Physics Project and is designed to make it easier to access, modify, and generate computer models.  Additional Ejs models can be found by searching ComPADRE for Open Source Physics, OSP, or Ejs.
Subjects Levels Resource Types
Electricity & Magnetism
- Electric Fields and Potential
= Electric Field
- Electromagnetic Induction
= Induced Currents and Forces
- Magnetic Fields and Forces
= Magnetic Fields
- Lower Undergraduate
- High School
- Upper Undergraduate
- Instructional Material
= Interactive Simulation
- Audio/Visual
= Movie/Animation
Intended Users Formats Ratings
- Learners
- Educators
- application/java
- text/html
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Access Rights:
Free access
License:
This material is released under a GNU General Public License Version 3 license. Open Source Physics (OSP) source code and compiled code consistent with the GNU General Public License (GPL) version 2. Curricular materials are copyrighted by the individual authors. For more information on terms of use see:
http://www.compadre.org/osp/webdocs/Terms.cfm
Rights Holder:
Andrew Duffy, Boston University
Keywords:
EJS, Ejs, field, magnetic force, net force, uniform electric field, uniform magnetic field, velocity selector
Record Creator:
Metadata instance created September 14, 2009 by Elijah Lee
Record Updated:
February 4, 2010 by Caroline Hall
Last Update
when Cataloged:
September 8, 2009
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
A. Duffy, (2009), WWW Document, (http://physics.bu.edu/~duffy/Ejs/EP_chapter19/Velocity_Selector_v1d.html).
AJP/PRST-PER
A. Duffy, Boston University Physics Easy Java Simulation: Velocity Selector, (2009), <http://physics.bu.edu/~duffy/Ejs/EP_chapter19/Velocity_Selector_v1d.html>.
APA Format
Duffy, A. (2009, September 8). Boston University Physics Easy Java Simulation: Velocity Selector. Retrieved June 25, 2019, from http://physics.bu.edu/~duffy/Ejs/EP_chapter19/Velocity_Selector_v1d.html
Chicago Format
Duffy, Andrew. Boston University Physics Easy Java Simulation: Velocity Selector. September 8, 2009. http://physics.bu.edu/~duffy/Ejs/EP_chapter19/Velocity_Selector_v1d.html (accessed 25 June 2019).
MLA Format
Duffy, Andrew. Boston University Physics Easy Java Simulation: Velocity Selector. 2009. 8 Sep. 2009. 25 June 2019 <http://physics.bu.edu/~duffy/Ejs/EP_chapter19/Velocity_Selector_v1d.html>.
BibTeX Export Format
@misc{ Author = "Andrew Duffy", Title = {Boston University Physics Easy Java Simulation: Velocity Selector}, Volume = {2019}, Number = {25 June 2019}, Month = {September 8, 2009}, Year = {2009} }
Refer Export Format

%A Andrew Duffy
%T Boston University Physics Easy Java Simulation: Velocity Selector
%D September 8, 2009
%U http://physics.bu.edu/~duffy/Ejs/EP_chapter19/Velocity_Selector_v1d.html
%O application/java

EndNote Export Format

%0 Electronic Source
%A Duffy, Andrew
%D September 8, 2009
%T Boston University Physics Easy Java Simulation: Velocity Selector
%V 2019
%N 25 June 2019
%8 September 8, 2009
%9 application/java
%U http://physics.bu.edu/~duffy/Ejs/EP_chapter19/Velocity_Selector_v1d.html


Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.

Citation Source Information

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

The APA Style presented is based on information from APA Style.org: Electronic References.

The Chicago Style presented is based on information from Examples of Chicago-Style Documentation.

The MLA Style presented is based on information from the MLA FAQ.

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Boston University Physics Easy Java Simulation: Velocity Selector:

Is Part Of http://physics.bu.edu/~duffy/Ejs/

This is the full index of Easy Java Simulations (EJS) by author Andrew Duffy, created for introductory physics.  EJS is a modeling tool developed by the Open Source Physics project.

relation by Caroline Hall

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