Artificial Magnets. What is the difference between temporary magnets and permanent magnets?

In your experiment, the soft iron becomes a temporary magnet only while it is in contact with the permanent magnet. When the permanent magnet is removed, the soft iron loses its magnetization.

Think of it like stretching a spring then letting it collapse back to zero. If you stretch the spring far enough though, you can permanently deform it.

The soft iron can become permanently magnetized by a number of methods.

1. Apply a HUGE magnetic field to the iron. If the force was large enough, it permanently magnetizes the iron. This is the method usually used to manufacture magnets.

2. Apply a smaller magnetic field the iron and at the same time, whack it a good one with a hammer. This shakes up the iron and it to magnetize a little,

3. Apply a magnetic field and at the same time heat the iron to its Currie temperature (very hot, but not melting) and allow it to cool again. The iron becomes magnetized to the almost exact amount of the magnetizing field.

A permanent magnet is one that has a magnetic attraction without any outside stimulation, while an electromagnet has a coil winding around it. When electricity passes through the coil, it causes a magnet field around the iron/steel piece. The electric field is relatively small whereas the electromagnetic field can be quite large. Depends on the size of the metal and the amount of electricity going through the coils. An increase in the magnetic field generated as stated above.

It's been awhile since Pimpin John was in a science class, [so take this FWIW] but I don't think any magnet is really permanent unless it's an electromagnet. Aside from that it's just a matter of the magnets composition which should determine relative strength.

Temporary magnets(such as electromagnets) become magnetic because of a factor(such as an electric magnetic field) that causes the magnetic domains to align into one direction. When the factor is not applied, the magnet's domains return to their normal random state, and therefore loses its magnetism.

i dont know how this works but it does. take a screw driver (a non magnetized one) and rub a magnet from one end to the other. you now have a magnetic screw driver. now rub the magnet in the opposite direction. you now have a non magnetic screw driver.

temp is only a magnet when an emf or voltage is applied the others is a magnet always

The only 'temporary' magnets I know of are electromagnets.