0
What else can I help you with?
Would an electromagnet be attracted to a magnet?
Yes electromagnet would be attracted to a magnet provided direct current flows through the coil ie when the electromagnet is activated. As unlike poles attract each other the magnet is to placed accordingly. Otherwise repulsion would take place.
Why would electromagnet be used in a recycling yard rather than a strong permanent magnet?
Because with an electromagnet, you can turn it off and on - you can pick things up with it then drop them again.
Why should the core of an electromagnet not be made from steel?
The core of an electromagnet should not be made from steel because steel can retain magnetism and decrease the efficiency of the electromagnet by causing residual magnetism. Instead, materials like soft iron or iron alloys are preferred for electromagnet cores as they can be easily magnetized and demagnetized.
Would an electromagnet be more useful than a permanent magnet?
It depends on the application. Electromagnets can be turned on and off, allowing for more control, while permanent magnets offer constant magnetic strength. Electromagnets are often preferred in situations where the magnetic force needs to be adjusted or varied.
An example of a permanent magnet?
An example of a permanent magnet is a refrigerator magnet. These magnets are made from materials with high magnetic properties, such as iron, nickel, and cobalt, and retain their magnetic field without the need for an external power source.
Would an electromagnet be attracted to a magnet?
Yes electromagnet would be attracted to a magnet provided direct current flows through the coil ie when the electromagnet is activated. As unlike poles attract each other the magnet is to placed accordingly. Otherwise repulsion would take place.
Why are electromagnets used instead of a permanent one?
sometimes in magnetic sepration etc electromagnets are more useful than permanent one as first magnet is used to seprate metallic waste and then its turned off so that attracted waste falls off at desired place so here permanent magnets are not that use full as electromagnet as in permanent magnet waste would get attracted but it would not fall. so electromagnet is more useful than permanent one.
If an electromagnet were used instead of a bar magnet to pick up nails the electromagnet would do what?
It will pick up the nails the same way a bar magnet would do!
Is there a magnet in an electromagnet?
An electromagnet is a type of magnet in which the magnetic field is produced by the flow of electric current. The magnetic field disappears when the current ceases. Take a look at this Wikipedia page for more information: http://en.wikipedia.org/wiki/Electromagnet
Why would electromagnet be used in a recycling yard rather than a strong permanent magnet?
Because with an electromagnet, you can turn it off and on - you can pick things up with it then drop them again.
If an electromagnet was free to move how would it move?
Electromagnet is the magnet which is becoming active so long current through the coil flows. If current stops then the magnetism disappears. If a core made up of soft iron is used then magnetism will become more intense but the magnetism exists so long the current flows. Any way electromagnet will behave just like a permanent bar magnet. So electromagnet would set itself along the earth's magnetic meridian.
Would a generator work if the permanent magnet rotate rather than the coil of wire?
I really don't know. :D
Can a magnet spin a wheel?
Yes, I haven't done any experimentation yet, but I've seen an electromagnet do it. I am not sure if it would work with permanent magnets though. Hope this helps at all.
Do man-made magnets have no charges?
Man-made permanent magnets are not so different from naturally-occurring magnets.In the case of a permanent magnet, electrical charges are irrelevant. The magnet may, or may not, have an electrical charge, but that doesn't affect the magnetism. An electromagnet works by electrical currents, which is a flow of charges. The electromagnet, however, doesn't need to have any net charge. In other words, any charge would go in at one point of the magnet but an equivalent charge would go back out at some other point.
What is the strongest type of permanent magnet?
An electro-magnet would be the strongest magnet. Or the sun itself would be the strongest natural magnet.
Suppose you wrapped an iron bar with wire and connected the ends of the wire to a battery what is this device called what would happen to this device if you disconnected the battery?
This would be an Electromagnet...... If the battery is disconnected, then the iron bar will become a permanent magnet.
Can you use an aluminum core for the magnet?
I cannot remember for sure, but in an electromagnet, an aluminum core would not have any permeability to add to the electromagnet's strength. An electromagnet is more efficient when a thicker core is used; it generates more power. The material you use should be prone to magnetism, as in attracted by permanent magnetic apparatuses or the such. So, an aluminum bar/core (cannot be magnetized), like you stated, wouldn't be the best choice for your magnet's core.
