The magnetism of an electromagnet is natural (it comes out of the laws of physics), but the magnetism disappears when the electricity is turned off - it is not a permanent magnetism.
You can turn electromagnets on and off.
Electromagnets are stronger and weigh far less than permanent magnets.
Nothing, elctro magnets act just the same as permanent magnets
No, electromagnets are not permanent.
A permanent magnet can affect magnets and electromagnets.
Ferro-magnets, permanent magnets, temporary magnets, and electromagnets. Ferro-magnets are magnets that are magnetic at a higher temperature than room temperature. do not quote me on that. permanent magnets are magnets that are always magnets, they are the kinds you use a lot. Temporary magnets are things that are magnetic in an extrenal magnetic field. Last but not least, electromagnets. Electromagnets are coils of wire around a cobalt, nickel, or iron. When ou run electricity through the wire, the core and wire become magnetic.
Electromagnets can be turned off and off
Electromagnets
Yes (and often are).
yes
They are permanent, temporary and electromagnets
T. B. Montgomery has written: 'Design of magnets and electromagnets' -- subject(s): Magnetism, Electromagnets, Magnets, Magnetic devices