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.
In how many days can ‘Q’ alone complete the work?
I. P, Q and R together can complete the work in 9`(3)/(13)` days.
II. P and ...
A sum of Rs.8200 is to be divided among 6 brothers, 5 sisters and 2 aunts. If each sister receives thrice as much as each aunt and each brother receives...
The following chart gives the expenditure incurred by a publisher to bring out a book
Main function of CPU is
Vishnu travelled equal distances at speeds of 10 km/hr., 30 km/hr., and 8 km/hr., and took a total of 15.5 minutes to complete. Find the total distance ...
The value of λ for which the 2 vectors 2i – j + 2k and 3i + λ j + k are perpendicular isÂ
Simplify: (2x)²-(2y)²-(4x)²
The number of five–digit telephone numbers having at least one of their digits repeated is
Which of the following is not a binary number?
Which among the following is not hardware?
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