Columbia University Physics Lecture Demonstrations


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Mechanics
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5B10.40 Electric Field Display

[Setup Time: 15 Min.] [Current Condition: Good]

Info

A new apparatus has small wool particles suspended in oil between electrodes of different shapes. When voltage is applied, the particles align with the field lines. Shows point-point, point-plate, and plate-plate patterns. The apparatus is displayed with an overhead projector.

Parts List

Van de Graaff Sphere, Discharge Sphere, and Discharge Y-Wand in K. Oversized, 2A

Overhead Projector in L. Misc

Plastic/ Glass Apparatus, Oil and Wool, and Electrodes in G. E&M, 1B

Relevant Simulation

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Other Information

Parallel Plates (overhead)
Dipole (overhead)

Real-Life Examples

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More Advanced Reading

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