Lenzs Law Demonstration Device

The products made of aluminum beam and aluminum ring (open loop and closed loop of each one),the base and pillar with a thimble. The bottom surface of the base is circular, the bottom diameter is 67mm, the total height of pillar and the base is about 100mm. Aluminum beam and aluminum ring are made by 0.5mm thickness aluminum, aluminum beam length is about 140mm, width :14mm; the diameter of the aluminum ring is not less than 50mm. 

Lenzs Law Demonstration Device