Question

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 an intensive property of a superconductor. the scientist is observing an extensive property of a superconductor. the scientist is observing the temperature of a superconductor.

Explanation:

La resistencia eléctrica es una propiedad intensiva de un material. Una propiedad intensiva no depende de la cantidad de material presente. En el caso del superconductor, la caída de la resistencia a cero a bajas temperaturas es una característica intrínseca del material y no depende de la masa o volumen del superconductor.

Answer:

The scientist is observing an intensive property of a superconductor.