How to Make a 9V Handy Battery Fan: Here you can learn, how to make a homemade 9V handy battery fan. Very simple and very easy to make
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These kits can be used in projects that demonstrates conversion of mechanical energy (fan rotation) to electricity. Dynamo motor can be used in projects that demonstrates generation of electricity to glow LEDs. For example: In wind mill demonstration, if a big size fan is attached to dynamo motor, rotation of fan causes electricity generation which will glow LEDs attached dynamo.

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5 mm Light Emitting Diode - [ Ссылка ]
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