Added: 2 years ago
From: DreamUnderseaWalk
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  • Is this similar to the rotating disk in the electric meter in the house?

  • There have been a number of commercial applications of homopolar motors...

    The usual technique is to use a stationary magnet to produce the magnetic field in which the conducting disk (or cylinder) is rotated.

    Faraday found, however, (Figure 7) that it does not matter whether the magnet itself is stationary or rotating with the disk as long as the conductor is moving in the field, but that rotating the magnet with the conducting disk stationary did not produce an induced voltage.

  • It has nothing to do with a Faraday disk. It's an AC Induction motor; a completely different machine which revolves for a completely different reason.

  • Isn't that a shaded pole induction type motor? Are you powering it with AC current or DC current?

  • @joethewhite Has to be powered by AC. you need the changing magnetic field of AC changing its polarity 120 times every second to creat relative motion. this is one of the requirements needed to make an induction motor run. if it was DC the disk wouldent be able to move. it would be locked in the field of an electromagnet.

  • Brilliant piece of history, thanks for sharing!

    I first saw this in 2nd year high school biology lab.

    It was long time ago, in the 1970's.

  • Keep experimenting in those lines. You will discover some amazing insights.

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