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**1. Homework Statement**

How to calculate braking force generated by eddy currents. If there is a disc of radius r with conductivity K, with a magnet located at a distance r-d from the center of the disc with a magnetic field B, what is the retarding force of the magnetic field created by the eddy currents for a given rotational velocity v of the disc.

**2. Homework Equations**

Faraday's law of induction

Ampere-Maxwell law

**3. The Attempt at a Solution**

Haven't been able to find information that shows how to explicitly solve for the retarding force produced by an eddy current.

Thanks