1. increases with temperature
  2. decreases with temperature
  3. does not change with temperature
  4. becomes zero at very low temperature
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Answer: Option 4

Super conductivity is a phenomenon in which the resistance of a substance becomes zero at very low temperature. Superconductors are solids that at low temperatures exhibit zero resistance to the flow of electrical current, a phenomenon known as superconductivity. The temperature at which the electrical resistance of a substance drops to zero is its superconducting transition temperature (T c).

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