Simple Alternator

Hi everyone , this simple alternator is for project of my electromechanic course.

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I used ;

- 0.18 mm coil wire (the coil has about 1000 turns)

- 2 625z bearings (16x5x5)

- 2 neodium magnets (diameter=21mm x 5mm)

- 1 Bolt (diameter:5mm , length:80mm)
- 1 Nut
-1 5 mmLED

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Thanks...