The magnetic field for a bar magnet is fairly circular around the whole of the magnet, with the north and south poles at opposite ends. The magnetic field for a horseshoe magnet, however, only arcs in front of the two ends, as both are pointed on the same end.
Horseshoe magnets have a stronger magnetic field at their poles compared to bar magnets, which have a more uniform magnetic field along their length. The horseshoe shape concentrates the magnetic field lines at the poles, making them more effective for picking up magnetic materials. Bar magnets have a weaker magnetic field at their ends but are more versatile in their application.
Ferromagnetic materials are substances that stick to magnets due to their strong magnetic properties.
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Magnetic force of attraction is invesely proportional to distance between two poles.
A soft magnet's magnetic field can be broken easily. A hard magnet's magnetic field can not be broken easily.
In general, magnets are brittle and will break before they bend. And yes, refrigerator magnets bend, but in them the magnetic material is powdered. But if we took a bar magnet and bent it, we'd have a horseshoe magnet. It's not quite that simple to make a horseshoe magnet, but it isn't too tough, either.
The further the magnets, the lesser the attraction/repulsion.
"electro magnets" are magnetic ONLY when electricity travels through a coil of wire surrounding them. "Magnets", as you state it, are permanent magnets and remain so independent of and not dependent upon any additional electrical charge.
I can tell you more.Bar,disc,horseshoe,u-shaped etc.
In general, yes. Horseshoe magnets are usually more sturdy while u-magnets are basically toys. I'm open to correction here.
They make horseshoe magnet babies.
yes
There are some variables like what the magnet is made of and how it was initially magnetized. If a bar magnet is bent into a horseshoe shape to make a horseshoe magnet, the magnetic field will be more dense (stronger) across the gap of the horseshoe magnet than it would have been anywhere around the bar magnet from which it was made. And since magnets are strongest at their poles, horseshoe magnets can use both their poles at once while bar magnets can only use one pole at a time.
when magnets are kept loose their magnetic power becomes weak. therefore a non magnetic substance should be kept in between of two magnets while storing them. so that there is no continuous attraction or repulsion between them.
Magnet shaped like a horseshoe, so both the polarities are pointed the same way. They can be weak or strong magnets (my dad had a couple when we were kids... we put a broomstick in them and did chin-ups from the I-beam in the basement, because they were strong enough to hold a 12-year-old's weight easily). Here is a site with a picture of some: http://www.indigo.com/magnets/gphmgnts/chrome-steel-horseshoe-magnets.html