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Swetha tries to attract a pile of steel paper clips using a bar magnet. But there is a sheet of unknown substance between her magnet and the clips. Some possible substances are given for the sheet. Which of them will let her attract more pins and why? Clay Iron Paper Gold |
Answer» Swetha tries to attract a pile of steel paper clips using a bar magnet. But there is a sheet of unknown substance between her magnet and the clips. Some possible substances are given for the sheet. Which of them will let her attract more pins and why?
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