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1. Electrostatics

   • Insulating materials when rubbed become charged
   • Electrons move when rubbed
     • Cloth to polythene
     • Acetate to cloth
   • negative means extra electons+

2. Dangers of static eletricity

   • Insulators have charge build up
     • Synthetic material
   • Earthing yourself
     • Vehicles have anti static lines
     • Anti-static liquids
   • Using static electricity
     • Removing smoke particles
       • Soot goes to opposiitly charged plates that are earthed
         • Grids have high voltage
           • They become positively or negatievley charged
             • Dust induce opposite charge on plates, attracting them
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