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The magnets that stick to the front of a refrigerator are permanent magnets, not electromagnets. There is also a permanent magnet embedded in the door seal of most domestic fridges to keep the door shut.
add All magnetic fields are caused by the movement of electrons. In a permanent magnet, several of the electrons have their spin axes aligned, thus creating the magnetic field. [From the math, conceptually there could be a magnet monopole, but no one has found one yet.]
In an electromagnet, the current of the electrons along the wires creates the external magnetic field.
The way a permanent magnet (eg frig magnet) works is that the magnet induces a magnetic field of opposite sign in the sheet steel of the frig body, and the permanent magnet and the induced field attract each other.
Have a crack at ferromagnetic, and paramagnetic in your favourite on line encyclopedia.
What else can I help you with?
How is an electromagnet different from a refrigerator magnet?
An electromagnet is a temporary magnet created by passing an electric current through a coil of wire, while a refrigerator magnet is a permanent magnet that can hold items to a refrigerator or other magnetic surface without needing an electric current. Electromagnets can be turned on and off by controlling the electric current, while refrigerator magnets retain their magnetism without the need for an external power source.
What is an example of a non electromagnet?
A permanent magnet, like a refrigerator magnet, is an example of a non-electromagnet. It produces a magnetic field without the need for an electric current.
Is the refrigerator a magnet?
No, the refrigerator itself is not a magnet. However, the door of the refrigerator may have a magnetic strip to keep it closed.
How is a electromagnet and a refrigerator?
An electromagnet is a temporary magnet created by passing an electric current through a coil of wire wrapped around an iron core. In a refrigerator, an electromagnet is used in the compressor motor to create a magnetic field that causes the motor to rotate and pump refrigerant through the system, helping to cool the refrigerator.
Is the magnetic field of an electromagnet different to a bar magnet?
The magnetic domains in a refrigerator magnet are laid down in parallel strips. They are also re-curved back on themselves so that the back side of the magnet has both north and south poles. If you put two refrigerator magnets back-to-back and move them around a little, it won't take long for you to "feel" the strips of magnetism. The common bar magnet have two simple poles at the ends.
How is an electromagnet different from a refrigerator magnet?
An electromagnet is a temporary magnet created by passing an electric current through a coil of wire, while a refrigerator magnet is a permanent magnet that can hold items to a refrigerator or other magnetic surface without needing an electric current. Electromagnets can be turned on and off by controlling the electric current, while refrigerator magnets retain their magnetism without the need for an external power source.
What is an example of a non electromagnet?
A permanent magnet, like a refrigerator magnet, is an example of a non-electromagnet. It produces a magnetic field without the need for an electric current.
Is a refrigerator magnet electromagnetic?
IT is different because an electromagnet runs with electricity. A refrigiator does not run with electricity.
Is the refrigerator a magnet?
No, the refrigerator itself is not a magnet. However, the door of the refrigerator may have a magnetic strip to keep it closed.
How is a electromagnet and a refrigerator?
An electromagnet is a temporary magnet created by passing an electric current through a coil of wire wrapped around an iron core. In a refrigerator, an electromagnet is used in the compressor motor to create a magnetic field that causes the motor to rotate and pump refrigerant through the system, helping to cool the refrigerator.
How is an electromagnet different a bar magnet?
a electromagnet is bigger than a bar magnet
Which is better a permanent magnet or an electromagnet?
electromagnet
Is the worlds biggest magnet a magnet or electromagnet?
the world is
Is a permanent magnet called a hard magnet or a electromagnet?
Perminant magnet
What is a magnet made by electric current?
An electromagnet.
Why will an electromagnet be able to pick up more steel cans than a permanent magnet?
An electromagnet is a stronger magnet.
Is the magnetic field of an electromagnet different to a bar magnet?
The magnetic domains in a refrigerator magnet are laid down in parallel strips. They are also re-curved back on themselves so that the back side of the magnet has both north and south poles. If you put two refrigerator magnets back-to-back and move them around a little, it won't take long for you to "feel" the strips of magnetism. The common bar magnet have two simple poles at the ends.
