GEOLOGY

EARTH SCIENCE

MAGNETISM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What subject is attracted to a magnet?
A
Silver
B
Water
C
Metal
D
Iron
Explanation: 

Detailed explanation-1: -When a ferromagnetic material is placed near a magnet, the magnet exerts a force of attraction called magnetic force on the ferromagnetic material. Then the material aligns itself in the direction of the magnetic field and the material is said to be magnetised. One of the ferromagnetic materials is iron.

Detailed explanation-2: -Magnets attract iron due to the influence of their magnetic field upon the iron. When exposed to the magnetic field, the atoms begin to align their electrons with the flow of the magnetic field, which makes the iron magnetized as well. This, in turn, creates an attraction between the two magnetized objects.

Detailed explanation-3: -Iron, cobalt and nickel, as well as alloys composed of these ferromagnetic metals, are strongly attracted to magnets. Other ferromagnetic metals include gadolinium, neodymium and samarium.

Detailed explanation-4: -Only ferromagnetic materials such as iron, cobalt, and nickel are attracted to magnetic fields strong enough to be truly considered magnetic.

Detailed explanation-5: -The metals that are magnetic (attracted to magnets) are also the metals that can be made into magnets. The most common magnetic metal is iron which is the main substance in steel. Iron is also in a mineral called loadstone which is the most magnetic naturally-occurring mineral.

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