Question

Define superconductivity . write any two its application

Answer 1

the property of zero electrical resistance in some substances at very low absolute temperatures.
applications are»
used in maglev trains, magnetic resonance imaging (MRI) and Nuclear magnetic resonance (NMR) machines, magnetic confinement fusion reactors .....

Answer 2

Answer:Superconductivity is a phenomenon in which certain metals,alloys and ceramics conduct electricity without any resistance when it is cooled below a certain temperature called the critical temperature.

Explanation:

Superconductivity-Superconductivity is a phenomenon in which certain metals,alloys and ceramics conduct electricity without any resistance when it is cooled below a certain temperature called the critical temperature.

If the temperature of the metal increased the resistance increases whereas if the temperature is decreased the resistance decreases.This phenomenon is used for achieving the highest conductivity of superconductor.

In superconductivity,the conductivity of material becomes such that when an electric current is passed through a loop of such a superconductor the electric current will keep flowing through it indefinitely without any need of power

The phenomenon of superconductivity was discovered by a Dutch physicist, Heike Kammerlingh Onnes,in 1911.

Two application of Superconductivity are as follows-

1.The superconductivity are used generators.

2.The superconductivity are used in power transmission

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