There is really no complete theory of superconduction yet. It is believed that in certain materials - the "classical" superconductors - the current is transported by Cooper pairs (i.e., pairs of electrons). However, the classical theory doesn't really explain superconduction in the more recently discovered high-temperature superconductors.
superconductor.
Super Conductor :)
Yes, a superconductor is a material that can conduct electricity without any resistance at very low temperatures. This means that once a current is applied, it can flow indefinitely without any loss of energy due to resistance.
As a superconducting material transitions into its superconducting state, it ejects internal magnetic fields. In that light, yes, a superconductor could be said to expel a magnetic field according to what is called the Meissner effect. A link can be found below.
A superconductor performs best at extremely low temperatures close to absolute zero, around -273 degrees Celsius. At this temperature, the material exhibits zero electrical resistance and can conduct electricity with maximum efficiency without any energy loss.
That's a "superconductor".
superconductor.
Super Conductor :)
Pure mercury will exhibit superconductivity at 4.2 degrees Kelvin. It was the first superconductive material that H. Kamerlingh Onnes found in 1911.
A current of electricity can flow at the same strength for an indefinitely long time in a superconductor but only for as long as the superconductor is held below its critical temperature. If its temperature were allowed to rise to its critical temperature - or higher - the material would no longer behave as a superconductor: it would acquire resistivity which would restrict the flow of current.
Yes, a superconductor is a material that can conduct electricity without any resistance at very low temperatures. This means that once a current is applied, it can flow indefinitely without any loss of energy due to resistance.
Superconductor
As a superconducting material transitions into its superconducting state, it ejects internal magnetic fields. In that light, yes, a superconductor could be said to expel a magnetic field according to what is called the Meissner effect. A link can be found below.
A superconductor performs best at extremely low temperatures close to absolute zero, around -273 degrees Celsius. At this temperature, the material exhibits zero electrical resistance and can conduct electricity with maximum efficiency without any energy loss.
A superconductor is the only material that completely repels magnetic fields, acting as an insulator from magnetism. This phenomenon is known as the Meissner effect, where a superconductor expels magnetic fields from its interior when it transitions to a superconducting state.
A superconductor is a material that can conduct electricity without any resistance when cooled below a certain critical temperature. This results in zero electrical resistance and allows a current to flow without losing energy to heat.
No. Salt water is a conductor but not a superconductor.