1. The problem statement, all variables and given/known data A dielectric sphere with the electric and magnetic susceptibilities ε1 and µ1 is rotating with angular frequency ω in a constant electric field E~ in a medium, characterized by the parameters ε2 and µ2. The angle between the rotation axis and the direction of E~ is α. Find the electric and magnetic fields inside the sphere and in the medium 2. Relevant equations Minkowski Relations: D = ε1*E +(ε1μ1 -1)*(ωxr)xH; B =µ1H -(ε1µ1 -1)*(ωxr)xE Maxwell Equations Electric field of at rest sphere in vaccum with applied E field: 3/(ε1 +2) *Ecosα 3. The attempt at a solution If this was in vacuum I could straightforwardly apply the Minkowski relations as in, say Jackson Problem 6.8, But I don't know how to account for the dielectric medium itself.