Question

explain maganisum of refrigerator ​

Answer 1

Answer:

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Answer 2

Answer:

Magnetic refrigeration is a cooling technology based on the magnetocaloric effect. This technique can be used to attain extremely low temperatures, as well as the ranges used in common refrigerators.

The effect was first observed in 1881 by a German physicist Warburg,[5] followed by French physicist P. Weiss and Swiss physicist A. Piccard in 1917.[6] The fundamental principle was suggested by P. Debye (1926) and W. Giauque (1927).[7] The first working magnetic refrigerators were constructed by several groups beginning in 1933. Magnetic refrigeration was the first method developed for cooling below about 0.3K (a temperature attainable by pumping on vapours.

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