Question

What is the Curie point of a magnet?

Answer 1

Hint: The working temperature of a magnet commonly refers to the temperature range in which the magnet works. The maximum working temperature of most magnets is very lower than that of the Curie temperature. Therefore defining the term Curie temperature and at what point magnetic changes take place for different materials and how it affects its properties.

Complete step by step answer:
 Curie point also known as Curie temperature is the temperature above which changes occur due to its impact on certain magnetic materials. The temperature at which ferromagnetism vanishes is the Curie point temperature. This temperature diminishes the magnetic properties of a material. There is some remnant magnetic magnetism that appears in some rocks and minerals below the Curie point. The temperature is about $570^\circ C$. This is the result of the magnetic mineral magnetite.
Let us consider an instance where we take iron atoms with a temperature of $770^\circ C$. Each iron atom acts as a tiny magnet at this temperature spontaneously. Each of them will align towards a magnetic material. In the case of a pure iron atom, the atomic magnets are distributed among its Microscopic region. It belongs to the Ferromagnetic materials category where the direction of the magnetic fields is the same. Three classes are there that involve the rise of temperature to the Curie point. They may apply to any material. But spontaneous arrangements are found in these kinds of disruptions. Among them, only a few weak magnetic kinds of behavior exist. This is called paramagnetism. Thus the rise of temperature above the Curie point can lead to the increasing roughly similar patterns of the decreasing paramagnetism. This behavior is similar in all three classes of materials.
The process of magnetization can be disturbed by very high temperatures. Thermal energy is responsible for atoms like steel which wobble back and forth. The energy leads to the disturbing tendency of the magnetic alignment. During this vibration of atoms, the behavior of atomic magnets does not remain the same, now the steel gives up its magnetic property. This occurs because of the Curie point.

Note:
 The molten iron ore present inside the earth’s core cannot be magnetized where it has a temperature above the Curie point. However, the earth behaves like a magnet and has its own magnetic field. Due to its magnetism, it has a magnetic south and north pole. An electromagnet is a reason for the generation of a magnetic field on earth. This is because of the passage of the electric currents flowing through the liquid metal core inside the earth.