Gravity Powered Powerbank. KES 10,000

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weka ikiwa inacharge

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Prove it

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Umesahau kuweka magnet kwa coil. Then find a way to make it oscilate

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For electromagnetic induction to occur, there must be relative motion between the coil and the magnet. In other words, the coil has to cut the magnetic field lines.

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seems legit
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