5A20.10 - Electrostatics - Rods and Pivots
Charge both rods on the rotating support by rubbing them with Cats Fur. The Lexan side will have a positive charge and the Plexiglas side will have a negative charge. Bringing a charged rod close to the rotating rods will show attraction and repulsion.
- Jay Zimmerman, "Electrostatic Whirligig", TPT, Vol. 25, # 7, Oct. 1987, p. 469.
- Robert A. Morse, "Laboratory Activity 4: The Versorium and Electric Dipoles", Teaching about Electrostatics, p. 3 - 12.
- Blane Baker, "Attraction and Repulsion: Two Electrostatic Experiments in One", Physics Education, March 2004, p. 131.
- George M. Hopkins, "Frictional Electricity", Experimental Science, p. 360.
- Bobby Mercer, "Spinning Straws", Junk Drawer Physics, p. 136.
- Rudolf F. Graf, "Making a Simple Electrostatic Charge Detector", Safe and Simple Electrical Experiments, p. 26.
- Rudolf F. Graf, "The Free-Wheeling Straw", Safe and Simple Electrical Experiments, p. 28.
- Borislaw Bilash II, “Getting a Charge Out of Things“, A Demo A Day – A Year of Physical Science Demonstrations, p. 119.
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