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blufor79
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Homework Statement
Iron is a metal that exhibits magnetic properties, but most pieces of iron are not magnetic. Why?
Homework Equations
none
The Attempt at a Solution
I have no idea. I am very confused.
Magnetism is a physical phenomenon where objects with magnetic properties can attract or repel each other. This is caused by the alignment of electrons in a material, which creates a magnetic field.
Magnetism is a result of the movement of electrons in a material. When electrons are in motion, they create a magnetic field around them. This field can interact with other magnetic fields, causing objects to attract or repel each other.
There are two main types of magnets: permanent magnets and electromagnets. Permanent magnets retain their magnetism even when they are not near other magnets. Electromagnets, on the other hand, only have a magnetic field when an electric current is passing through them.
Magnetism is measured using a device called a magnetometer. The strength of a magnet's field is measured in units of gauss or tesla. The Earth's magnetic field, for example, has an average strength of 0.5 gauss.
Magnetism has a wide range of applications in our daily lives. Some common uses include electric motors, generators, MRI machines, and speakers. It is also used in data storage devices like hard drives and credit cards. Additionally, magnetic fields are used in compasses for navigation.