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I will attempt to answer this but my expertise on magnetics is low, so improvements are welcomed if necessary. The main difference is that an electromagnet requires a current to be magnetic, the potential difference means electrons flow to one end of the system (toward the anode) and so you polarise the material. Meaning one end is now positive, the other negative.
At least, generally speaking.
However if you took the current away, the material would reorder itself atom-wise and lose it's magnetic properties.
A permanent magnet as we commonly know them exhibit ferromagnetic properties, meaning the atoms do not reorder so randomly in the absence of a current. They like being that way and so will stay that way permanently (within reason).
Hence you can make some things magnetic by rubbing a magnet against then, reorganising their structure. If the material allows it to stay that way, you get a magnetic paperclip and so forth.
What else can I help you with?
Why will an electromagnet be able to pick up more steel cans than a permanent magnet?
An electromagnet is a stronger magnet.
Is not a permanent magnet?
An electromagnet is a magnet while an electric current is running through the coil. Turn off the current and it is no longer magnetised, and is, therefore, not a permanent magnet.
What can you do with an electromagnet that you cannot do with a permanent magnet?
You can control the strength of an electromagnet by adjusting the current flowing through it, which is not possible with a permanent magnet. Additionally, you can turn the electromagnet on and off by controlling the electric current, allowing for greater flexibility in applications such as lifting objects or generating magnetic fields.
How are the uses of an electromagnet different from those of a permanent bar magnet?
A bar magnet is made from magnet materials and has a magnetic field at all times. An electromagnetic is not naturally magnet and only has a magnetic field when electricity is passed through it.
Why is an electromagnet better that a bar magnet?
An electromagnet can be turned on and off by controlling the electric current, allowing for greater control and versatility in its applications. Additionally, the strength of an electromagnet can be easily adjusted by changing the current, making it more powerful than a bar magnet. Electromagnets can also be designed to have specific shapes and sizes to suit different needs.
Which is better a permanent magnet or an electromagnet?
electromagnet
Is a permanent magnet called a hard magnet or a electromagnet?
Perminant magnet
How is a permanentmagnet different from a electromagnet?
a permanent magnet is always magnetic as an electromagnet is only magnetic when it is wound around with wire and energised
Is the magnet in a compass a permanent magnetic or an electromagnet?
PermanentThere is no source of current in a compass, therefore the magnet is a permanent magnet.
Is electromagnet a permanent magnet?
No, an electromagnet is not a permanent magnet. It is a magnet that produces a magnetic field when an electric current is passed through it, and the magnetic field disappears when the current is turned off.
Why will an electromagnet be able to pick up more steel cans than a permanent magnet?
An electromagnet is a stronger magnet.
How is a electromagnet diffrent then a permanent magnet?
An electromagnet is a temporary magnet that only produces a magnetic field when an electric current is flowing through it, while a permanent magnet retains its magnetism without needing an external electric current. Additionally, the strength of an electromagnet can be easily adjusted by changing the amount of current flowing through it, while the strength of a permanent magnet is fixed.
Why electromagnet is different from a permanent magnet because an electromagnet what?
Mainly in that the electromagnet is NOT permanent. In other words, it can be switched on and off.Another relevant difference is that the electromagnet constantly requires power, at least while it is on.
How does heat affect a magnet?
A permanent magnet (i.e. not an electromagnet) will be demagnetised by heating it.
Is the magnet in a compass a permanent or electromagnet?
The magnet in a compass is a permanent magnet. It retains its magnetism without the need for an external electrical current.
How is an electromagnet different a bar magnet?
a electromagnet is bigger than a bar magnet
How can you make an electromagnet rotate?
To make an electromagnet rotate, you can place it in the proximity of a permanent magnet. When a current flows through the electromagnet, it interacts with the magnetic field of the permanent magnet, causing the electromagnet to rotate. This setup can be used in devices like electric motors and generators.
