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Re: gEDA-user: Magnetic bike operation

Rob Butts wrote:

   I'm having a debate with an ee friend about how the magnetic resistance
   works on an excersice bike.



   Does anyone know if it is simply an electro-magnet close to a metal
   wheel where the stronger the magnetic field the stronger the
resistance? 

yeah, it's related to the current paths in the solid wheel dissipating energy.
If the wheel is slotted theenergy dissipation goes down and braking effect goes down.

JG


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