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Electromagnets
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∙ 13y ago
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What kind of material do magnets attract?
Any kind of metal is magnetic.
What kind magnets are made from materials which retain their magnetic properties for a long time?
Permanent magnets.
Why do magnets stick to stainless steel guns?
Stainless steel is not a single kind of steel. It is a generic name for a wide range of corrosion-resistant steels. The properties of these steels vary and some of them are magnetic.
Does a washing machine need a magnet to operate?
The answer is both yes and no.It actually depends on the kind of washing machine in question.The problem is the motion.A washing machine need some kind of an engine or motor in order to move the cloths back and forth. This can of course be done manually.If we rule out manual washing machines, and also only count in electrical ones then these can be made in two different ways.The motor causing the tumbling or the motion in the washing machine can be made with both permanent magnets like NeoDym, or with purely electrical pulses creating strong electromagnetic fields.Most motors in washing machines made today are made without magnets. It is cheaper to make purely electrical motors where the electricity provides the magnetic fields needed. By electronically rotate the magnetic field around the axis, this will force the motion of the motor. It would use less electricity to make the motors with NeoDym magnets but it would also cost more to produce.As a conclusion: We can not make an electrical washing machine that operate without magnetic fields, but magnetic fields does not have to be made by magnets.
Does a vacuum cleaner need a magnet to work?
Some kind of magnet or magnetic field is necessary for a motor to operate. Alternating current vacuum cleaners (that plug into the wall) have motors with electromagnets. Direct current vacuum cleaners (that plug into the car's cigarette lighter socket) have motors with permanent magnets.
What kind of material do magnets attract?
Any kind of metal is magnetic.
What kind of train is the Maglev?
The Maglev refers to a train that is vastly popular in the country of Japan. The train is powered by magnets and magnetic fields, as opposed to wheels and gasoline. These trains are capable of safely reaching speeds that traditional trains cannot.
What kind magnets are made from materials which retain their magnetic properties for a long time?
Permanent magnets.
Can you levitate things?
There are a variety of ways to levitate things. It can be done by magnetic repulsion (which is sometimes used to levitate entire trains), by hidden wires, by wind (airplanes fly by a kind of levitation - the word levitate simply means, to lift up) by the buoyancy of hydrogen or helium gas, etc. It cannot be done by telekinesis, however. That is science fiction.
What are magnetic eyelashes?
The name is kind of self explanatory. Magnetic eyelashes are false eyelashes that connect to your lash line with magnets rather than glue. They stick by sandwiching your natural lashes between two sets of magnetized eyelashes.
What kind of trains were there in the olden days?
the old trains
Does water effect permanent magnets?
not really. is depends on what kind of magnets they are.
Does an electric egg beater contain magnets?
Yes, an electric egg beater will have some kind of magnets in it. These may be permanent magnets, or may be electromagnets, but the motor in the appliance will have to have some kind of magnets in it to operate on electricity.
What kind of trains are used in Japan's subway?
Japanese Trains
Why do magnets stick to stainless steel guns?
Stainless steel is not a single kind of steel. It is a generic name for a wide range of corrosion-resistant steels. The properties of these steels vary and some of them are magnetic.
Is there magnets all around the world?
Well, yes, kind of. But they are not magnets, it's gravity.
How is strength of a magnet affected by cardboard?
Magnetic field are unaffected by those materials. Magnets and electrical fields in general are only effected by other magnetic fields. Think of a compass that is brought near another magnet. Magnetic fields are exponential in strength meaning that they are most strong at the surface and quickly fade with distance. Dont have the equation but its simple and straight forward. So if you want a magnetic field to extend through a thick (5mmm) cardboard or plastic you will need larger more powerful magnets such as rare earth or neodymium magnets. Its really about the strength of the magnet and the distance of the magnetic field. Hope that helps.
