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If experimentally, we suspend a rare earth magnet and an electromagnet from strings attached to the ceiling. We then tie strings directly underneath them to the floor, with steel ball bearings attached. The distance between the magnets and the ball bearings is 1/8" when the objects are stretched to the ends of the strings. Energizing the electromagnet causes the steel ball bearings to hover under their respective magnets. 100 years later we have consumed 1 billion megawatts of energy for the electromagnet. Where did the 1 billion megawatts from the rare earth magnet which has performed similarly come from?1 AnswerPhysics1 decade ago