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Al Tobias (wat4y) - Office: Rm. 201, (434) 924-0538 - Lab: Rm. 202, (434) 924-6800


Physics Demo Manual

Demonstrations are cataloged according to PIRA Bibliography

PLEASE REQUEST DEMOS MINIMUM 1-WEEK IN ADVANCE

Due to Physics Building renovations, the lead time to set up demo requests has increased due to the need to transport equipment across campus. Please be kind and let me know well ahead of time what you need.


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 Electrostatics
 Electric Fields And Potential
  video  - Van de Graaff Generator
  video  - Electrostatic Bell
 Electric Lines of Force
 Electrostatic Motor
  video  - Electric Fields
  video  - Gauss' Law
 Radio in Faraday Cage
  video  - Fluorescent Bulb in Faraday Cage
  video  - Lightning Rod
  video  - Electric Wind
 Ionic Drive
  video  - Smoke Precipitator
 Capacitance
 Current and Resistance
 Electromotive Force And Current
 DC Circuits
 Magnetic Materials
 Magnetism
 Inductance
 Induction
 Complex Circuits
 Semiconductors And Tubes
 Transmission Lines and Antennas

 video  - Electric Wind

Purpose:

To show attraction between charges.

Procedure:

centered image
  DEMO VIDEO DOWNLOAD  


Separate capacitor to maximum distance and place a lighted candle between plates. Connect each electrode of Wimshurst machine to a plate of the capacitor and crank. The predominantly positively charged flame will be attracted to the negative plate of the capacitor in a seeming electric "wind".

Hints:

Use capacitor consisting of thin rectangular plates on stands

Equipment:

  • Wimshurst Machine
  • Candle
  • Connecting Wires
  • Matches
  • Parallel Plate Capacitor