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Electromagnetism Applets
| Overview of EM Induction | View before and after studing the chapter as a form of revision to bring it all together. Youtube. 10 minutes |
4 Star | |
| Faraday's Law | Probably the best in cyberland - check out all relevant tabs on top. |
5 Star | |
| Short applet demonstrating EM induction | 3 Star | ||
| Demonstration of Faraday's Law. Move magnet slowly, then quickly and notice size of deflection. | 4 Star | ||
| Same as above, but this time you move a coil in and out of a magnet. | 3 Star | ||
| Lenz’s
Law
|
Nice Demonstration by visualising magnetic fields | 4 Star | |
| The Jumping Ring | Short demo. MyYoutube. 1 minute |
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| Generator Applets | Note that the higher the frequency, the greater the voltage produced | 4 Star | |
| More detailed than above as you can visualise Current, Magnetic Field and Force | 4 Star | ||
| Click on the 'Generator' tab on top. | 5 Star | ||
| Very useful to explain the sin wave nature of the induced emf. | 5 Star | ||
| Make your own motors | Couldn't be simpler, but you do need neodynium magnets. Order them online. Every class should be doing this. From Youtube |
5 Star | |
| Make your own generator | Text based. You need neodynium magnets, and led and coil of wire. |
3 Star | |
| View a short video clip demonstration of mutual induction | Light bulb connected to a coil is made to light by bringing it close to a primary coil | 4 Star | |
| Metal Detectors | Description of how metal detectors work in terms of EM Induction | 4 Star | |
| Transformers
|
Nice applet which gives a mathematical view of transformers | 4 Star | |
| Click on the 'Transformer' tab, and make the current source A.C. | 5 Star | ||
| Parts of a transformer | Link | Nice video from howstuffworks. 3 mins. | 4 Star |
| Where do the electrical wires behind your socket go to? | MyYoutube. 1 minute | ||
| How an electric guitar works | From howstuffworks.com | 4 Star | |
| from YouTube. 2:30 | 4 Star |