Induced currents are always lossy, that's not what is meant. Magnetic Viscosity ( Sv ) is a property of magnetic materials to delay the change in induced flux ( M or B ) from applied magnetizing force ( H ) due to the time it takes for domains to rotate. Sv also delays the return of B when H is removed. It's on the order of 1 millisecond for NeFeBo, but can vary from near zero to seconds depending on the material.
Hoyt Stearns Scottsdale, Arizona US -----Original Message----- From: Terry Blanton [mailto:[email protected]] ..NdFeBo magnets are also conductors. When a changing magnetic field is applied to a conductor, there is a magnetic force generated due to induced currents in the conductor which oppose the original field. This force will vary with the velocity of the interacting magnets.

