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Electricity and Magnetism

By Science

Explore the invisible forces behind magnets, power lines and scrapyard cranes, from familiar conductors to superconductors.

Electricity and Magnetism

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A TASTE OF THE SHOW

Sample questions

  1. What does a step-down transformer reduce in an AC power system?
  2. Why can a scrapyard crane use an electromagnet to pick up steel and then release it?
  3. How does a conventional fuse interrupt an excessive electric current?

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