- #1
Steve143
- 10
- 0
http://img404.imageshack.us/img404/9523/dynamos.jpg
I understand that when the rotating magnet spins, current should be induced in the coils which powers the lights.
So what is the point of the soft iron core? The rotating magnet should magnetise it because it is near it, and it should become an electromagnet when current flows through the wire, but I can't see a point to any of this. I would think the design should work even if you replaced the soft iron core with a piece of wood because I think all you really need is for the magnet to spin near the wires for the electricity you need.
I understand that when the rotating magnet spins, current should be induced in the coils which powers the lights.
So what is the point of the soft iron core? The rotating magnet should magnetise it because it is near it, and it should become an electromagnet when current flows through the wire, but I can't see a point to any of this. I would think the design should work even if you replaced the soft iron core with a piece of wood because I think all you really need is for the magnet to spin near the wires for the electricity you need.
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