a electromagnet is bigger than a bar magnet
An electromagnet can be turned on and off.
I'm not sure where a bar magnet is used, but an electromagnet is used in junkyards, and in some laboratories.
It requires a current through a coil of wires.
The bar magnet and the electromagnet act identical. The difference being a electromagnet is a coil of wire that has a power source connect to both ends, this energizes the coil with an electromagnetic field.
It will pick up the nails the same way a bar magnet would do!
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electromagnets carry more energy and are mainly found in motors................
The comon bar magnet has two poles, and the electromagnet can be turned on and off also the electromagnet uses electricity to create a magnetic field in the first place. so the difference is normal magnet cant be turned on and off but the electromagnet can. does that answer ur question?
The magnetic domains in a refrigerator magnet are laid down in parallel strips. They are also re-curved back on themselves so that the back side of the magnet has both north and south poles. If you put two refrigerator magnets back-to-back and move them around a little, it won't take long for you to "feel" the strips of magnetism. The common bar magnet have two simple poles at the ends.
The electromagnet can be turned on and off depending on whether it's needed or not.
An electromagnet is different from a regular magnet because it can be turned on and off by controlling the flow of electricity through it, while a regular magnet is always magnetic.
Put the South pole of the nail against the bar magnet to see if it attracts or repels.