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nipiano93
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Hey someone please explain why some metals have 0 resistance at 0 kelvin (absolute zero).
Please explain the complete mechanism properly.
Please explain the complete mechanism properly.
nipiano93 said:Hey someone please explain why some metals have 0 resistance at 0 kelvin (absolute zero).
Please explain the complete mechanism properly.
Some metals, such as superconductors, have zero resistance at zero kelvin because of the phenomenon known as superconductivity. At extremely low temperatures, the atoms in these metals align in such a way that the flow of electrons is unhindered, resulting in zero resistance.
In order for metals to have zero resistance at zero kelvin, they must first undergo a process called supercooling. This involves cooling the metal to extremely low temperatures, often with the use of liquid helium, in order to achieve the necessary atomic alignment for superconductivity.
No, not all metals can achieve zero resistance at zero kelvin. In fact, the majority of metals exhibit some level of resistance at all temperatures. Only certain metals, such as niobium, lead, and mercury, have been found to exhibit superconductivity at low temperatures.
The presence of zero resistance at zero kelvin drastically changes the properties of metals. With no resistance, electricity can flow through these metals without any energy loss, making them highly efficient conductors. Superconductors also exhibit other unique properties such as perfect diamagnetism and the ability to levitate in the presence of a magnetic field.
Yes, it is possible for some metals to exhibit zero resistance at temperatures higher than zero kelvin. This phenomenon, known as high-temperature superconductivity, was discovered in the 1980s and has since been achieved in certain materials at temperatures above the boiling point of liquid nitrogen. However, achieving zero resistance at room temperature is still a major challenge for scientists and engineers.