Electric charge: Difference between revisions

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{{Further|Triboelectric effect}}
{{Close paraphrasing|section|source=https://archive.org/details/ATreatiseOnElectricityMagnetism-Volume1|free=yes|date=November 2014}}
When a piece of glass and a piece of resin—neither of which exhibit any electrical properties—are rubbed together and left with the rubbed surfaces in contact, they still exhiexhibit no electrical properties. When separated, they attract each other.
A second piece of glass rubbed with a second piece of resin, then separated and suspended near the former pieces of glass and resin causes these phenomena: