What does temporary magnet and permanent magnet mean???

Question

Is for my little's brother project so I don't know anything about it!I looked in wikipedia some of the words,but I couldn't find this two!

Answer 1

Best Answer - Chosen by Voters

A permanent magnet is made of metal alloys that are designed to hold their magnetism over a long period of time. They are used in speakers, compasses and other deviced that need a magnet but cannot have wiring. They even onclude those memo holders that you can stick to the refrigerator..

A temporaty magnet requires electricity to operate. Wire is wound around special metal plates that are bundled together. When the electricity is turned on there is a magnetic field produced. This type of magnet it used in generators, alternators, motors, clutches, brakes. and transformers and chokes. (Inductors). When the electricity is turned off the magnetic field collapses leaving only a tiny residual amount of magnetism.

Answer 2

Temporary Magnets

A body of normally a soft steel or piece of iron which is readily magnetized but retains only a very small field after the active power of the external magnetic field is removed.


Permanent
Magnets are materials that produce a magnetic field of their own. Extreme examples of magnets are (1) "hard" or "permanent" magnets (like refrigerator magnets), which remember how they have been magnetized, and (2) "soft" or "impermanent" magnets (like the material of the refrigerator