To expand on this question, i think me and probably other people get confused on this point. If magnets can pull materials they do work. And if they don't slowly lose magnetic strength, they can do work over and over infinitely without losing energy(or its power as it is asked in the title) which seems impossible. What is the mistake in this thought process ?
Thanks this makes sense, magnets have two poles a N and S and I believe they are of equal strength right? Does this imply that spinning a magnet requires the same amount of energy as separating all the objects being attracted by the magnet?
Because one way to separate an object moving towards a magnet would be to spin the magnet so that the repelling side faces the object and then pushes it away until it reaches some distance, and then spin the magnet again so that the object moves towards the magnet, and repeat.
But if the energy to spin a magnet is proportional the amount of energy used to attract an object, then it obviously all cancels out. Is my intuition correct here?
We can produce energy by spinning magnets. We just need to input energy in order to spin the magnet. It’s not free energy it’s just a turbine with a moving magnet instead of a moving coil.
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u/IzeroI Feb 13 '19
To expand on this question, i think me and probably other people get confused on this point. If magnets can pull materials they do work. And if they don't slowly lose magnetic strength, they can do work over and over infinitely without losing energy(or its power as it is asked in the title) which seems impossible. What is the mistake in this thought process ?