Al Tobias (wat4y) - Office: Gibson S123 & Physics 218, (434) 924-0538
Demonstrations are cataloged according to PIRA Bibliography
PLEASE REQUEST DEMOS WELL IN ADVANCE
Due to Physics Building renovations, the lead time to set up demo requests has increased due to the need to transport equipment across campus. Please be kind and let me know well ahead of time what you need.
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You have selected the following Demos:
video - Electrostatic Bell
Purpose:To show the phenomenon of charge by induction and contact and the musical results thereof.
Connect each electrode of Wimshurst machine to each plate of capacitor. Make separation between plates about 4-5 cm. and hang aluminum ball in between plates. Crank Wimshurst machine slowly and ball will be attracted to a plate by induction. After touching the plate, the ball acquires the plate's charge and is attracted to the other plate. This continues as long as the Wimshurst machine is cranked and produces a bell-like tone.