Demonstration: Electric Field - Examples

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  • Van de Graaff generator
  • Ping-pong ball suspended on string
  • Fur pad
  • Fur ball suspended on string
  • Rubber rod
  • Piece of string
  • Sharp pointed metal object
  • Sharp pointed metal spinner

The effect of an electric field on negative, positive, and neutral objects is demonstrated. In a different experiment, it is shown that the electric field of a charged object is stronger near its sharp points.