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P12 static electricity
- 7. Scientists have ranked materials in order of their ability to hold or give up electrons. This ranking is called the triboelectric series. A list of some common materials is shown here. Under ideal conditions, if two materials are rubbed together, the one higher on the list should give up electrons and become positively charged TRIBOELECTRIC SERIES your hand glass your hair nylon wool fur silk paper cotton hard rubber polyester polyvinylchloride plastic
- 13. The –ve charge on the rod pushes the electrons to the bottom of the foil, so the top has a relatively +ve charge.
- 16. Why are the tyres made from conducting rubber?