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Electromagnets are used electrical devices including loud speakers, motors,generators and mri machines

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An electromagnet is made of a length of sire turned into a coil and connected to a battery supply.

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Electromagnets are powered by an electric current. The magnetic field is created by an electrical current and it can be changed depending on the current.

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The poles can be reversed by reversing the electric current 🙂

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Electromagnets can magnetise metals permanently

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The poles of an electromagnet can be reversed by reversing the electricity

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The magnetic field can be changed by the amount of elctric current in the wineding

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An electro magnet is a soft metal core made into a magnet by the passage of electric current through a coil surrounding it.

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The strenght can be changed by how much power is in putted to it 🙂

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Electro magnets usually consist of a wire wound into a coil

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The magnetic field is created by a electric current

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A soft metal core made into a magnet by the passage of the electrical current through a coil surrounding it.

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An ElectroMagnet is a Magnet that runs on Electricity.
It can be turned on and off.
The Poles of an Electromagnet can even be reversed by reversing the flow of electricity.
They are used in MRI machines and Scrap yards so they can pick up heavy Scrap Metal.
You can change the strength by changing the amount of electric current.
Electromagnets are stronger than normal magnets

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-A magnet that relies on electricity
-can be easily changed by the ammount of current that flows through it
-magnetic field is produced by an elecrical current
-the poles of the magnet can be reversed by reversing the flow of electricity
-made of soft metal core
-used for high disk drives, speakers, motors and generators
-when electric current flows in a wire it creates a magnetic field around the wire. This effect can be used to make a electromagnet.

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They are used in electric devices to pick up heavy scrap metal. They are also used in MRI machines which look at your insides.

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An electromagnet is a magnet that runs on electricity. The strength of an electromagnet can easily be changed by changing the amount of electric current that flows through it. The poles can be changed by changing the direction of electricity flow. Electromagnets can be used in electrical device.