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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.
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∙ 12y ago
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Are all electromagnets magnetic?
All electromagnets are magnetic when they are turned on.
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
Why is steel not used to make electro magnets?
steel is note for an elecromagnet because once it turned magnetic it stays magnetic
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.
Why is iron nail used to make an electromagnet?
because exhibits maximum flux density requires small magnetising field exhibits low hysteresis loop
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.
Are all electromagnets magnetic?
All electromagnets are magnetic when they are turned on.
Does an iron box use electromagnets?
no there is no use of electromagnets in iron box
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
How do electromagnets find uses in a vending machine?
Electromagnets are used in vending machines to deciever real coins from fake ones. Electromagnets will sort counterfeit money from real money, because most counterfeit money is an iron alloy. Iron is magnetic and gets pulled by the electromagnet, while real coins are not effected.
Why is steel not used to make electro magnets?
steel is note for an elecromagnet because once it turned magnetic it stays magnetic
What common alloy is used to make magnets?
Iron is used for electromagnets.
What are the types of magnets?
Ferro-magnets, permanent magnets, temporary magnets, and electromagnets. Ferro-magnets are magnets that are magnetic at a higher temperature than room temperature. do not quote me on that. permanent magnets are magnets that are always magnets, they are the kinds you use a lot. Temporary magnets are things that are magnetic in an extrenal magnetic field. Last but not least, electromagnets. Electromagnets are coils of wire around a cobalt, nickel, or iron. When ou run electricity through the wire, the core and wire become magnetic.
What force do electromagnets produce?
Magnetic Force
Can we make magnet without using magnetic material?
Yes. Electromagnets don't require a magnetic material; they just require a conductor and an electric current.
Can you make a magnet from ordinary iron?
yes it is possible to make a magnet from iron because it is magnetic and magnetic things can be turned into magnets.
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.
