Question

What governs the onset of negative temperatures in magnetic materials?
Explain
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Answer 1

Answer:

Ok

Explanation:

Answer 2

Magnetic Materials

Explanation:

However, at some point, quite half the spins are within the spin-up position. during this case, adding additional energy reduces the entropy, since it moves the system beyond a 50/50 mixture.

This reduction in entropy with the addition of energy corresponds to a negative temperature.

Temperature affects magnetism by either strengthening or weakening a magnet's attraction.

A magnet subjected to heat experiences a discount in its magnetic flux because the particles within the magnet are moving at an increasingly faster and more sporadic rate.

Up to 150 degrees Celsius neodymium magnets are considered to possess the simplest magnetic performance of all permanent magnetic materials, but when elevated to temperatures above 150 degrees Celsius their magnetic strength are going to be reduced below that of a magnet of an equivalent size magnet made up of samarium cobalt material.