Back EMF (Electro Motive Force) demonstration with 3 Lego motors

  • Posted on: 12 January 2005
  • By: lucas

No tricks !

1 generator, 2 motors

The motor turned by hand on the left acts as a generator for the two on the right. The motors are connected in parallel using the standard Lego cables.

See this Wikipedia page for more info on back-EMF.

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