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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.

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How do you put permanent magnet in a sentence?

A permanent magnet is a material that maintains a persistent magnetic field without the need for an external power source. For example, "The refrigerator door securely closed thanks to the strong permanent magnet embedded in the seal."


What is the difference between permanent pole and temporary pole?

a Temporary Magnet lose its magnetism quickly, a Permanent Magnet is hard and it keeps it magnetism


How can the magnetism of a permanent magnet be weakened or removed?

Put it in a coil which has an alternating current in it. The AC current produces a magnetic field in the coil which alternates with the changing voltage. This changes the magnetism of the permanent magnet. Gradually reduce the current in the coil and the permanent magnet will end up unmagnetised.


When a piece of iron behaves like a magnet when it is touching a permanent magnet that is called?

The process by which a iron piece touching a permanent magnet behaves as a magnet as long as it maintains contact is called magnetic induction. not only does this work when the iron is physically touching the magnet but it works as long as the piece of iron remains under the influence of the magnet. A iron piece attracted to a magnet through a paper with out any physical contact will also behave as a magnet.


How are electro magnet different from permanent magnet?

Electro magnets differs from permanent magnet because it requires electricity. A simple electro magnet consists of an iron rod wrapped in a coil of copper and when electricity flows through the copper, a magnetic field is formed.

Related Questions

Is the magnet in a compass a permanent magnet or electronic?

A. Compasses typically use a permanent magnet.


Is a needle in a compass a permanent magnet?

Yes, it is a permanent magnet.


Is magnetite a temporary magnet?

No, it's a permanent magnet. It consists of an iron oxide, and iron is a permanent magnet.


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.


How can a magnet be temporarily magnetized when attached to a permanent magnet?

When a magnet is attached to a permanent magnet, it can become temporarily magnetized by aligning its magnetic domains with the strong magnetic field of the permanent magnet. This alignment causes the magnet to exhibit magnetic properties for a short period of time.


Is a permanent magnet called a hard magnet or a electromagnet?

Perminant magnet


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.


Is magnetite a magnet?

No, it's a permanent magnet. It consists of an iron oxide, and iron is a permanent magnet.


Is the magnet in a compass a permanent magnet or a electromagnet?

It is a permanent magnet. Electromagnets(as the name suggests) requires an electric source to become a magnet, when the power source is turned off it will not function as a magnet.


What kind of magnet is the domain remains aligned?

A permanent magnet.


How can i do permanent magnet?

eBay


A permanent magnet can affect?

A permanent magnet can affect magnets and electromagnets.