Generators and Magnetic Braking

{'English - US': '/high-school/physics/demonstrations-on-video/electromagnetism/generators-and-magnetic-braking/8.02_L17.srt'}

Flash and JavaScript are required for this feature.

Download the video from iTunes U or the Internet Archive.

Previous track Next track

Video Index

Please make sure you play the Video before clicking the links below.

  • Conducting Loop Rotating in a Uniform Field
    Showing that a current is induced in a coil of wire when it is rotated in the magnetic field of the earth.
  • Electric Generators
    A student tries to light up light bulbs with a hand powered generator. Also an example of a flashlight and a radio which each have a built in generator.
  • Eddy Current Braking
    Definition of magnetic braking, with a demonstration of a copper pendulum swinging through a magnetic field.
  • Conducting Coil Moving Into a Magnetic Field
    Showing that a bulb connected to a coil of copper wire lights up when the coil is moved into or out of a magnetic field.
  • Magnetic Braking
    Showing that a conducting ring slows down as it is falling into or out of a magnetic field.

Course: 8.02 Electricity and Magnetism, Spring 2002

Instructor: Prof. Walter Lewin