Type I superconductors

Type I superconductors are materials that exhibit perfect electrical conductivity below a specific temperature called the critical temperature. When cooled below this temperature, they eliminate electrical resistance completely, allowing current to flow without energy loss. They also expel magnetic fields from their interior in a phenomenon known as the Meissner effect. However, they can only sustain this perfect state in relatively low magnetic fields; stronger fields cause superconductivity to break down. Examples include pure metals like lead and mercury. These properties make Type I superconductors useful for applications needing stable, lossless current flow in low magnetic environments.