Question : Which of the following principles is used to produce 'low temperatures'?
Option 1: Superconductivity
Option 2: Joule-Kelvin effect
Option 3: Thermo-electric effect
Option 4: Adiabatic demagnetisation
Correct Answer: Adiabatic demagnetisation
Solution : The correct option is Adiabatic demagnetisation .
To achieve low temperatures, an adiabatic demagnetisation method is helpful. This technique helps to achieve low temperatures of around 1K for the electronic paramagnetic salts. However, the temperature can be as low as possible for the nuclear paramagnets. There are numerous compounds or elements known as nuclear paramagnets that have no magnetic moments but do have magnetic moments in their nuclei. For magnetic refrigeration, these magnetic moments are helpful.
Related Questions
Question : Cryogenics is:
Know More about
Staff Selection Commission Sub Inspector ...
Result | Eligibility | Application | Selection Process | Cutoff | Admit Card | Preparation Tips
Get Updates Brochure
Your Staff Selection Commission Sub Inspector Exam brochure has been successfully mailed to your registered email id “”.
