TeachEngineering
Teach Engineering: What Is Bluetooth?
Students learn about electrical connections, how they work, and their pervasiveness in our world. Two specific skills explored are Morse code and the function of Bluetooth. Using bluetooth, they control LEGO robots remotely from Android...
Wolfram Research
Wolfram Science World: Capacitor
A rather mathematical explanation of a capacitor. Gives all the appropriate formulae, with many hotwords for further info.
Science Education Resource Center at Carleton College
Serc: Do All Types of Lights Follow Ohm's Law?
For this physics lab learners investigate whether Ohm's Law applies to common electric devices. Students submit their findings in a written report or class discussion.