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.
A sentence has been given with a blank to be filled with an appropriate word. Choose the correct alternative.
She rubbed her hands over her arm...
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If you look at the night sky after dinner you can see a big bright dot. …………………………...
In each of the questions below, a sentence is given with two blanks, indicating that some parts are missing. Identify the correct pair of words that fit...
Trevor’s role in the ________ evening was rather brief. He came, _______ the entire show in one take, answered a couple of ________ from the audience...
- Given below is a sentence with one blank. Below the sentence are given four words among which one word might fill the blank. If none of the words fill the ...
Choose the correct answer to fill the given blank
She _____ to the gym three times a week.
Select the most appropriate option to fill in the blank.
Ashwin was ________ made a fool by Dhoni.
She expressed …….. over how crimes ……….. women continue to increase despite ………..laws to protect women.
...Fill in the blank with the most appropriate word.
The manager's ______ planning proved to be very profitable for the company.
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