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What are the advantages of electromagnets against normal magnets?
Wiki User
∙ 7y ago
Electromagnets' magnetism can be manipulated. Electromagnets can be magnetised and demagnetised by passing electric current. Therefore they are used in motors- which works when the coil is magnetised by passing an electric current. It is also used for cranes.
Wiki User
∙ 13y ago
Wiki User
∙ 10y ago1. To lift very heavy objects in factories electromagnets are only used because there are no permanent or natural magnets that powerful.
2. Electromagnets are handy as well. As soon as the work is done you can turn it off by disconnecting the current.
Wiki User
∙ 10y agoElectromagnets can be turned on and off at will.
Wiki User
∙ 7y agoElectromagnets can be switched on and off - normal magnets can't. Electromagnets are only magnetic while there is current flowing though the circuit.
Wiki User
∙ 6y agoThe advantages are that:* The electromagnet can be turned on an off.
* The electromagnet can be made much stronger than a permanent magnet.
Wiki User
∙ 14y agoIt can be turned on and off.
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How are rare earth magnets different to normal magnets?
they're stronger
Are electromagnets use in fridge?
NO,THEY ARE NOT......only uses a normal magnet at the door.
Is anodized aluminum magnetic?
NO. Aluminum and oxygen are paramagnetic and do not show magnetic behavior under normal conditions.
Why is a magnetic levitation train faster than a normal train?
A Magnetic Levitation or MagLev train can travel at a higher rate of speed than a normal train because the train does not make contact with solid material. It is suspended above the guideway by magnetic repulsion and only has the friction of air and inertia as a resistance to movement. The speed of the train is regulated by the frequency of the power applied to the magnets of the linear motor composed of the electromagnets on the train and in the guideway.
What household goods use magnets?
There are a lot of normal household items that contain magnets. One item is the refrigerator, which uses a magnet in its closing mechanism. Some ovens use magnets to keep the door closed. Fridge magnets.Some household items that use magnets are the fridge and freezer. Other than those, I do not believe there is anymore.
What are some devices that use electromagnetism?
Electromagnets in scrapyards are used to carry metal around. Electromagnets are better than normal magnets because you can turn the current on and off.
Do all magnets have the same power?
No, some are more powerful than others, as there are your normal refrigerator magnets that hold a few sheets of paper and there are super electromagnets that can hold cars.
What do electromagnets attract?
Unlike normal magnets, electromagnets attract just someof the alloys that contain iron, such as steel and iron, but not all of them. Electromagnets do not attract aluminium, copper, titanium,brass, bronze, tin, nickel, platinum, gold, silver, lead or pewter.Contrary to some opinions, electromagnets cannot attract cardboard.See also the related question.
Does a piano have magnets?
No, there are no magnets in a normal mechanical piano.
How are rare earth magnets different to normal magnets?
they're stronger
Are electromagnets use in fridge?
NO,THEY ARE NOT......only uses a normal magnet at the door.
Where are electromagnets used in industry?
An electromagnet is used in an electrical engine, but an electrical engine contains normal magnets too.
If you break a magnet in half are 4 poles created like 2 normal magnets?
yes. Four poles are created like two normal magnets. if we further divide the 2 new magnets, we get 4 new magnets each with its own north pole and south pole.
Are electromagnets the same thing as magnets?
Yes. (Note: electromagnet and magnet) The only difference is that an electromagnet is when get a hunk of metal and flow electricity through it getting an electrically produced magnetic field and a normal magnet is a rock (magnetite) that comes with this magnetic field. So, yes. They are just made differently.
How many magnets are in a normal sized neocube?
There are 216 magnetic spheres that make up the Neocube, BuckyBall, Or Zen Magnets.
Can rusty magnets attract other magnets like regular magnets and can they Repel also?
Well, rusty magnets do not work as well as a normal magnet. But they can work. And yes try can repel but if you use rusty magnets, it won't work as well. I hope this helped! :)
Which type of wires do you use for generating electricity from magnets?
the normal copper or aluminum wires.
