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2-Cryogenics
Cryogenic is the science of producing and using very low temperature. The study of low temperature effects in biology and medicine is called cryobiology. Low temperature can be produced by liquefying gases. It was succeeded to produce liquid air (-196 oC ) and liquid helium ( -269o C ). For solid CO2 it is ( -79 oC ) and liquid nitrogen (-196 °C ) .
These cold liquids have many medical and biological advantages. There are many problems with these gases and liquids like storage and transfer because they absorb heat by conduction, convection and radiation. So they have to be kept in a special container and transferred by special pipes.
which theorem is better among all network theorems
Manganin is an alloy of (A) Copper, manganese and nickel. (B) Copper and manganese. (C) Manganese and nickel. (D) Manganese, aluminium and nickel. Ans:
Pascal's principle describes that if the pressure is operated at any position in an incompressible liquid it is send undiminished to all other sections in the liquid. In the dia
What are the basic reasons for loss of residual magnetism? How do you get it? What is the requireable and maximum DC voltage is to be applied to get back the residual magnetism?
law of successive diintegration
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what would be the introduction to a moving ciol galvanometer
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