The jumping ring experiment is an outstanding demonstration of Faraday's laws of electromagnetic induction and also of Lenz's law. A conducting non-magnetic ring is placed over the extended vertical core of a solenoid. When ac power is applied to the solenoid, the ring is thrown off or held in a state of levitation. There are three rings: A = Copper ring

B= Aluminum ring (twice the thickness as A but SAME weight) So my question is, which ring will levitate the highest? Copper ring that is thinner but same weight as ring B or the Aluminum that is thicker? Provide me why you think it is, supported by any of the three laws.

What are the three people who are most important for the development of this experiment? Ampere, Faraday, and Lenz? I am not sure please correct me.