Electron Flow in Lightbulbs
Flash Animation
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Description
These Flash files show how electrons flow through a light bulb filamement.
- The first animation is a plain light bulb animation which demonstrates how electrons flowing through a narrow filament encounter resistance, causing the filiment to heat up and expel energy as light and heat.
- The second animation demonstrates the Edison Effect where electrons which flow into a bulb can be attracted to a charged plate and produce a current.
Screen Capture: Lightbulb

Screen Capture: Edison Effect
Related MTOs
See the Energy Physics MTO page for additional modules on electricity.
Course Information
Original Course: INART 55 - History of Electroacoustical Music
Year: 2005
Original Instructor: Mark Ballora, School of Music
Other Uses: This module could also be used in other physics, and engineering courses.
License and Download
This MTO item can be used royalty-free under the following conditions. See the MTO Item Open Source License for complete terms.
- The item is distributed AS IS with no implied or stated warranties.
- The item is restricted to educational or personal use only. Commercial use is not permitted.
- Copies may be distributed, but only for educational or personal use. This item cannot be sold for profit.
- You have permission to modify the item, but the derivative work must remain open source and cannot be marketed for profit.
- Copyright of the original item is held by Penn State.
- If this item is used, attribution to Penn State is requested.
Download Link
The .swf Flash animation file and help documents are compressed in a .zip file. Once you download the file, double-click on the .zip file to extract the Files. Open the ReadMe.html file for instructions on posting the Flash file on a Web site or in a course management system.
Download Animation (bulbs.zip - 240 KB)

