A scientist observes that the electrical resistance of a superconducting material drops to zero when the material is cooled to very low temperatures. Which of the following statements best describes what the scientist is observing? The scientist is observing the electrical power of a superconductor. The scientist is observing the temperature of a superconductor. The scientist is observing an intensive property of a superconductor. The scientist is observing an extensive property of a superconductor.
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Option C is correct
Superconductors are the doped semiconductors which are having very low resistance or no resistance to conduct the electricity. Its resistance is directly propotional to temperature.
The resistance does not depends on the quantity of the material such as mass or number of moles, it depends on quality of the material such as the metal used for making the material. Therefore, The resistance of a material is an intensive property
Thus, scientist observed its intensive properties.
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