The phenomeno of superconductivity was first observed by ________

Superconductivity means

Explain phenomenon of superconductivity.

The phenomenon of superconductivity was discovered by ………………………. .

Nucleus was first observed by.

The first theoretical explanation of superconductivity was given by ______

Recently, the phenomenon of superconductivity has been observed at 95 K . This temperature is nearly equal to

What is superconductivity ?

Eddy current was first observed by