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What happens to the resistance of a copper wire as it gets hotter?

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  1. It goes down
  2. It stays exactly the same
  3. It goes up

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References

  1. OpenStax College Physics 2e, 20.3 Resistance and Resistivity openstax.org/books/college-physics-2e/pages/20-3-resistance-and-resistivity Checked 2026-10-10.

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