Rods, Fur, and Silk

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PIRA Classification: 5A10.10

Description: A PVC rod is rubbed with black cloth to produce a negative charge. An acrylic rod is rubbed with cellophane to produce a positive charge. Electroscopes are used to display this production of charge.

Special Instructions: Make sure you hear the build up of charge on the rods. This will be indicated by a crackling noise. Will not work well when humid (beginning of fall semester or summer session).

Ideally For: Phys 1001, 1102, 1202, 1302, 1402

Condition: Good

Setup time: 1 minute

Safety Issues: None