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[Phys-l] FW: AC LED demonstrator





Scroll down to the 10/22/2005 workshop for a safer version...

Sam

http://www.phy.syr.edu/courses/K-12/K-12page.htm

-----Original Message-----
From: phys-l-bounces@carnot.physics.buffalo.edu
[mailto:phys-l-bounces@carnot.physics.buffalo.edu] On Behalf Of Anthony
Lapinski
Sent: Friday, June 15, 2007 9:50 AM
To: tmzoughi@kennesaw.edu
Cc: phys-l@carnot.physics.buffalo.edu
Subject: Re: [Phys-l] AC LED demonstrator

A classic electricity demo! Use a bicolor LED and a 22k ohm resistor, both
available from Radio Shack. Solder the resistor to one wire (cut slightly
shorter) of an extension cord. Solder the LED to the other end of the
resistor and the other ext cord wire. Tape it, plug in, spin it.
Fascinating!