Question

What is superconductivity? Mention any two uses of superconductors.

Answer 1

Hint: We derived about superconductivity and its uses, and learned how superconductors will work.Nuclear Magnetic Resonance (NMR) is a medical application. In other NMR applications, including NMR spectroscopy, NMR may also be used for imaging.

Complete step by step answer:
Superconductivity is a collection of physical characteristics found in certain substances in which magnetic fluxes are absent and electrical resistance vanishes from the material. Any substance with these characteristics is a superconductor. In comparison to an everyday metal conductor whose resistance is slowly decreasing as its temperature is reduced to almost absolute zero, a superconductor has a standard critical temperature below which the resistance decreases suddenly to null. An electric current will last indefinitely without a power source through a loop of superconductive wire.

Superconductor used for maglev trains and MRI (magnetic resonance imaging) machines.

Additional Information:
Maglev train: Maglev is a train-carrying mechanism that uses two sets of magnetic magnets: one is used for repelling and dragging the train off the track, and another is used for pushing the raising train forward, taking advantage of the lack of friction. On certain "medium-range," maglev can be competed favorably with high speed rail and planes (generally from three to seven hundred miles [two to four hundred miles]).

MRI: MRI is a medical imaging tool used in radiology to construct anatomical images and physiological processes in our bodies. MRI is an illustration technique. MRI scanners are used to produce pictures of organs in a body using intense magnetic fields, magnetic field gradients and radio waves. MRI does not require x-rays or the use, separating it from CT and PET scans, of ionizing radiation. Nuclear Magnetic Resonance (NMR) is a medical application.

Note:
In order to accelerate charged particles very quickly (close to light) superconductive magnets can be created by very strong electromagnets. In order to detect even the weakest magnetic field, SQUIDs (superconductor Quantum Interference Devices) are used.