drag cup meaning

  "drag cup" in a sentence
  • [Electronics]
    A cup of nonmagnetic metal (usually copper or aluminum) that, when rotated in a magnetic field, acquires a voltage proportional to the speed of rotation. The device is often used as a brake.


  1. :: : : Sounds a bit like drag cup but thats a rotating magnet inside an aluminium cup ( use as a speedometer in the past )-- Light current 17 : 13, 14 September 2006 ( UTC)

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