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Physics
Williams » Physics » Demonstrations » E&M » Current and Resistance

Current and Resistance

Purpose:Visualize electric current.

Parts:

  • Wooden tray with nails in it
  • Metal hanger to hold the tray
  • Steel balls

Setup:

Attach one end of the tray to the hanger and place it as shown in picture 3, so that the tray will have some incline with table. Now release steal balls to the tray from the higher end and let them go through. This explains the concept of electric current and how the electrons/charges move with resistance.

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Cathode Ray Tube
Resistivity
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Physics
Thompson Physics Lab
33 Lab Campus Drive
Williamstown, MA 01267 USA
Physics Phone Number 413.597.2482
413.597.4116
Michele.C.Rech@williams.edu

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