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結果 : how to make diy electromagnet

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4:32

How to make an Electromagnet!

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science project - build a strong 12 volt electromagnet

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DIY Super Electromagnet

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How to Make an Electromagnet - Science Experiment

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DIY Electromagnet | Vise For Excelsior Drill Press

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How to Make an Electromagnet for Kids | STEAM DIY | KiwiCo

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How to Make an Electromagnet

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The Amazing Homemade Electromagnet Experiment

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Making a Simple Electromagnet

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Homemade Electromagnet

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The Fantastic Homemade Electromagnet

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Project 054 | Electromagnet from microwave transformers

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