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Description: Charge pith balls and view the separation. This only works on very dry days, usually in January or February. We recommend using rods and Pivot. Purchased/Built: purchased Setup Time: 5 minutes Quant. in Demo Room: 1 Demo References Freier and Anderson Ea-5 Suspend two small pith balls from a common support. Sutton E-7 Charge pith balls. The American Journal of Physics AJP 46(11),1131 Charge two pith balls with an electrostatic generator, project on the wall and measure, discharge one ball, and remeasure the separation. Accuracy is typically 2%.
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