You have to pick iron filings from a heap of scrap. How will you hold a magnet over the heap so that most iron filings stick to it?Why?
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You have to pick iron filings from a heap of scrap. How will you hold a magnet over the heap so that most iron filings stick to it?Why?
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To ensure most iron filings stick to the magnet when picking them from a heap of scrap, I would hold the magnet as close as possible to the heap without touching it. Moving the magnet slowly and evenly over the surface of the scrap heap will allow the magnetic field to attract and pick up the iron filings effectively.
This method works because iron is a ferromagnetic material, meaning it's strongly attracted to magnets. When the magnet gets close, the magnetic field induces magnetism in the iron filings, causing them to align with the magnetic field and stick to the magnet.