electromagnetic and permanent magnets similarities and differences?

Answer 1

Electromagnetic magnets, as you can probably tell, require electricity to be magnetic. When electricity runs through a wire coiled around a piece of metal the current directs all electrons one way, thus polarizing the metal and creating a magnet. When the current stops (i.e. you cut the power), the particles in the metal scatter and it loses magnetism.

Permanent magnets are made of a material in which all particles are polarized, they face the same direction, naturally. They require no electricity and will not lose magnetism in their lifetime, except perhaps when struck by a hammer or something, in which case the particles may scatter.

Answer 2

electromagnetnets are temporary and require constant energy to sustain (u can make a simple one by wrapping copper wire around an iron nail and connecting each end to leads of a battery). permanent magnents are, like the name says, reletively permanent (heat and smackin it on suff can dimish its power). both attract nickel and iron but only permanent magnets have north and south poles... i think lol

Answer 3

The first one is changing, the other is constant.