Thursday, April 30, 2009

Electricity

  • Positively charged objects have gained protons, rather than being deficient in electrons.
  • Electrons which are lost by an object are really lost (no conservation of charge).
  • All atoms are charged.
  • A charged object can only attract other charged objects.
  • The electrostatic force between two charged objects is independent of the distance between them.
  • Gravitational forces are stronger than electrostatic forces.
  • Batteries have electricity inside them.


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