5A40.20 Can Attracted to Charged Rod

Concepts

Electrostatic induction, attraction of opposite charges

Overview

An empty pop can is placed on its side in the middle of the table. A PVC pipe is charged by rubbing fur on it (the pipe becomes negatively charged). The charged pipe is then held near the pop can, attracting the can toward the rod.

Details

Equipment

  • [1] Empty pop can
  • [1] Rabbit fur
  • [1] PVC pipe

Important Notes

  • Make sure you hear the build up of charge on the rod. This will be indicated by a crackling noise during charging.
  • As with most electrostatic demonstrations, this works best under 50% humidity.

Script

  1. Rub the fur on the PVC rod and thus making the PVC rod negative.
  2. Hold the rod near the pop can. Observe the can moves slowly toward the rod.

 

Additional Resources

References

  • PIRA 5A40.20

Disclaimer

  • Don't attempt this at home!

Last revised

  • 2018

Technicals

Related AV

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If you have any questions about the demos or notes you would like to add to this page, contact Ricky Chu at ricky_chu AT sfu DOT ca.