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Al Tobias (wat4y) - Office: Gibson S123 & Physics 218, (434) 924-0538

Physics Demo Manual

Demonstrations are cataloged according to PIRA Bibliography


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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 Electric Fields And Potential
 Current and Resistance
 Electromotive Force And Current
 DC Circuits
 Magnetic Materials
 Barkhausen Effect
 Diamagnetic Levitation
  video  - Hysteresis
 Curie Point
 Meissner Effect (diamagnetic levitation)
 Complex Circuits
 Semiconductors And Tubes
 Transmission Lines and Antennas

Meissner Effect (diamagnetic levitation)


A well known illustration of a superconductor acting as perfectly diamagnetic.


Pour LN2 into the small Styrofoam container containing the superconductor. The magnet may be placed on the superconductor before cooling if desired. Once cooled, the magnet will float above the superconducting disk.