# Which of the following principleis used to produce ‘low-temperatures’ ? with Answer - Everyday Science Mcqs | TestPrep

> Solved MCQ: Which of the following principleis used to produce ‘low-temperatures’ ? Correct Answer: D. Adiabatic demagneti-sation. Verified answer explanation for FPSC, PPSC, MDCAT, NTS, and CSS competitive exam preparation.

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# Which of the following principleis used to produce ‘low-temperatures’ ?

Direct Answer & Quick Reference

The correct option is **D. Adiabatic demagneti-sation**.

Magnetic refrigeration is a cooling technology based on the magneto-caloric effect. This technique can be used to attain extremely low temperatures, as well as the ranges used in c...

A. Super conductivity

B. Joule-Kelvin effect

C. Thermo-electric effect

D. Adiabatic demagneti-sation **(Correct Answer)**

✨ Explain with AI

Verified Key: D. Adiabatic demagneti-sation
Solved by 5,090+ students

**Detailed Explanation & Reference:**

Magnetic refrigeration is a cooling technology based on the magneto-caloric 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 magnetocaloric 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. This is also known by low temperature physicists as adiabatic demagnetization, due to the application of the process specifically to create a temperature drop.

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