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It shows that a ferrite rod and a steel coil have different effect when used as the core of a solenoid.
Yep, good video and a nice way to end the thread.
//www.youtube.com/watch?v=7cJe-0FuC1gHere's a video of induction heater involving a ferrite rod.The first interesting thing we can find is that the insertion of ferrite rod can reduce total power consumption, even though it absorbs some energy and generate heat. To do that, it must have taken the energy from somewhere else, e.g. the energy that was previously spread to the surrounding of the coil.
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