powerbank making using aa batterys #sciencproject ...

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Magnet led bulb making #sciencproject #diy #school...

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Power bank lithium battery #sciencproject #electro...

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Litiam battery pareal connection #sciencproject #e...

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My new electric project #sciencproject #experiment...

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Dc motor fan homemade part-1 #sciencproject #exper...

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Mini car making using dc motor #shorts #youtubesho...

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Mini tv making using car screen #science #electron...

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