Electric Field & Electric Potential (Including Point Charges)

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Video Index

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  • Making a Dipole
    Using a charged rubber rod and two metal spheres to create a dipole. An electroscope is used to show that a dipole has been created.
  • Dipoles in Electric Fields
    Torque on a dipole in an electric field causes it to rotate and align with the field. Demonstration by creating a dipole and placing it in the electric field of a large Van de Graaff generator.
  • Grass Seeds
    Demonstration of using grass seeds in oil to probe an electric field, with examples of the field for a dipole and for two charges of the same polarity.
  • Electric Field Between Van de Graaff and Walter Lewin
    Using a balloon to demonstrate the electric field between a Van de Graaff generator and an oppositely charged Professor Walter Lewin.

Course: 8.02 Electricity and Magnetism, Spring 2002

Instructor: Prof. Walter Lewin