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All electromagnets are magnetic when they are turned on.
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∙ 14y ago
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Why do floating globes require power if they are magnetic?
because they use electromagnets whitch use power
What are electromagnets made from?
you get a magnetic maerial (mainly iron nail) and wrap copper wire around it and attach a baterie to the copper wire and there you have it, an electromagnet
What metals cant be picked up by electromagnets?
Many metals cannot be picked up by electromagnets (at room temperature). For instance, aluminum, gold, mercury, and copper will not be attracted to an electromagnet. Iron sticks to an electromagnet at normal temperatures. If iron is too hot, it loses its magnetic abilities. This is true of all metals: if they're cold enough they exhibit magnetic properties, if they're too hot they don't show magnetic properties. Even mercury (liquid at room temperature) can be made magnetic if it's cooled to very low temperatures.
What is the Magnetic property of alkali metal at room temperature?
Alkali metals are not ferromagnetic. All materials are affected by magnetic fields to some degree, however. Also, alkali metals could be made into electromagnets insofar as they are conductive, though this would not be practical.
Why do electromagnets make iron magnetic?
The electromagnet causes many randomly oriented magnetic areas in the piece of iron to all align in the same orientation. In some cases adjacent magnetic areas not only align in the same orientation, but they merge into common large areas making it harder for the areas to randomize again.
What force do electromagnets produce?
Magnetic Force
What is the different electromagnets and permanent magnet?
Electromagnets are non permanent magnets. They got magnetic field because of applied electric field. They lost their magnetic field which was around that, when the applied electric field is stopped. permanent magnets have magnetic property always with it. Permanent magnetic property loses when we heat the material. It cannot be regained once again. But electromagnets are capable of regaining its magnetic properties.
How do cat scans use electromagnets?
CAT Scan does not use electromagnets, its MRI (Magnetic Resonance Imaging) which uses Electromagnets to produce images of the patient's body.
What is a characteristic of electromagnets that makes them useful in simple tools?
they are magnetic
What are the devices that convert electrical energy into magnetic energy?
Electromagnets.
What kind of magnets do magnetic levitation trains use?
Electromagnets
Electromagnets in a kettle?
An electro magnet is a coil which has a magnetic fireld around it
What happens if an electromagnets ecectricity is turned off?
The magnetic field dies.
What is affected by electromagnets?
Other magnets, as well as magnetic substances such as iron, in which magnetism is induced by the external magnetic field.
How are electromagnets used in hard drives?
electromagnets are used to scan it and read the data.the HD has tiny magnetic imprints, which are read by the electro magnet
How do scrap yards separate metals from non magnetic metals?
They use electromagnets to separate magnetic metals from non-magnetic metals/materials in scrapyards.
What are the structures and magnetic fields of solenoids with those of electromagnets?
the ans is ther are no structures in electromagnet
