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Superconducting Magnets and Levitation

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Multiple Choice

What is the fundamental principle behind the phenomenon of superconductivity?

  1. Electrons in a superconductor experience zero resistance to electrical current flow.
  2. Superconductors exhibit perfect diamagnetism, repelling magnetic fields.
  3. Superconductors have an infinite critical temperature, allowing them to conduct electricity without resistance at any temperature.
  4. Superconductivity is a property exclusive to certain metals and alloys at extremely low temperatures.
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