Question
Which of the following principle is used to produce
low-temperatures'?Solution
Magnetic refrigeration is a cooling technology based on the magneto- caloiic effect. This technique can be used to attain extremely low temperatures, as well as the ranges used in common refrigerators, depending on the design of the system. The magneto- caloric effect (MCE, from magnet and calorie) is a magneto-thermodynamic phenomenon in which a change in temperature of a suitable material is caused by exposing the material to a changing magnetic field.
Which of the following is not in the top five of the world's most recognizable brands?
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Name the Goa-based airline that became the first to operate a flight to Lakshadweep.
What is manganese used for ?
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'Milk Fever' disease in cows and buffaloes is caused due to
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