Name the natural magnet
Answers
Answer:
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Explanation:
Name of the natural magnet is loadstone.
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Answer:
Natural magnets are different from other magnets, because they do not need to have their properties altered in order to become magnetized. Some materials may become temporarily or permanently magnetized when rubbed by magnets, or when they are subjected to electric fields. Natural magnets are already magnetic and are found in the Earth.
Types
One example of a natural magnet is the mineral magnetite, composed of an iron oxide. A lodestone is a type of magnetite that was one of the earliest natural magnets discovered. Basalt, which forms when lava hardens, also contains magnetite, although its magnetic field is weak.
Another natural magnet is pyrrhotite, which is formed of iron sulfide. It is only weakly magnetic, with the strength of its field varying according to the amount of iron contained.
The Earth itself behaves as a natural magnet. It has a magnetic south pole which is actually located geographically north, in Canada. Likewise, its magnetic north pole is actually geographically south, in the Antarctic.
Magnetic Theory
Magnetism is created from moving charges, or electric current. The moving charges both create and respond to magnetic fields. An atom has electrons that revolve around the nucleus and also rotate on their axes in a manner called spin. These movements give rise to magnetic fields.