A changing Magnetic flux induces an Electric field. This can create a current in a wire to power a
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No battery needed!pic.twitter.com/ggeayJedFD
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I think you should remove “no battery needed”. People might think you can create this effect without energy input or that even worse you can get more out than you can put in.
well there is no battery needed! you need to put in work by accelerating the magnet