การดู
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Magnets for Kids | What is a magnet, and how does it work?
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Intro to Magnetism and Magnetic Fields
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GCSE Physics - Permanent & Induced Magnets #77
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Magnetic Keepers
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GCSE Physics - What Are Magnets? How to Draw Magnetic Field Lines #76
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Induced Magnetism
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How do Magnets Work? | Engineering Physics
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Mega Wow | What Makes Things Magnetic? | PBS KIDS
