Question

Explain the principle of adiabatic demagnetisation for
reaching temperature near absolute zero.
परम शून्य के निकट तापमान तक पहुँचने के लिए स्थिरोम
विचुंबकीकरण के सिद्धान्त की व्याख्या कीजिए।​

Answer 1

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Adiabatic demagnetization is a process of cooling. It occurs in magneto-caloric materials. The principle is that these materials (especially rare-earth elements) heat up when placed in a magnetic field and cool down when removed from the magnetic field. ... These processes occur when done adiabatically ( Q=0).

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Answer 2

I don’t know anything