An electrical conductor that has very low resistance to current at low temperatures is called a superconductor.

Here's why:

* Superconductivity: This is a state of matter where a material exhibits zero electrical resistance. This means that electricity can flow through it with no loss of energy.

* Low Temperatures: Superconductivity typically occurs at extremely low temperatures, often close to absolute zero (-273.15°C or -459.67°F).

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