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22.6: Thinking about the material
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Reflect and research
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Who discovered Ampere’s Law? What did Ampere discover?
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What are three common uses of electromagnets.
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How does a coil gun work?
To try at home
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Use a battery and some wire to build an electromagnet. Is it stronger if you use a ferromagnetic core?
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Research the current that your household electronics have. Are design choices effected by the magnetic fields generated by the current in these electronics?
To try in the lab
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(Simulation) Calculate the magnetic field from a loop of current at all positions in space (not only on the axis of symmetry).
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Propose an experiment to characterize the magnetic field produced by Helmholtz coils.
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Propose an experiment to build and test a coil gun.