• A Braun electroscope has an aluminum vane that rotates when it is charged.
  • To charge a rod, pull it through the cloth once with minimal pressure.
  • Slide the rod back and forth over the sphere to transfer more charge to the electroscope.
  • Touch the banana cable to the sphere to discharge the electroscope.
  • Handle rods by their marked ends only.
  • The vane is very delicate, please do not touch.
  • The electroscope can be shadow projected onto a screen for increased visibility in a large classroom.

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