0
Some material whose spins can be aligned (and in turn align spins of other materials close enough to feel the effects of its magnetic field) and electricity.
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
When would you want to use an electromagnet rather than a permanent magnet?
When you need a magnet you can turn on and off an electromagnet is used.
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.
What is the best metal to make an electromagnet out of?
An iron core and copper wire (that is coated with an insulator) are used all the time to make electromagnets.
What magnet is used in a hair dryer?
An electromagnet is used.;)
What are 3 ways electromagnet used?
in door bells,
Why is an electromagnet not use in compass?
An electromagnet could be used for the pointer of a compass, but there are many reasons why a simple permanent magnet works far better for this particular job.An electromagnet:Requires a power source.Has far more mass that would have to balance on the center pin.A reliable contact mechanism would have to be invented to connect the needle to the power source....these among others...
When would you want to use an electromagnet rather than a permanent magnet?
When you need a magnet you can turn on and off an electromagnet is used.
What are the devices that make used of electromagnet?
AC/DC Motors, Generators etc. are the devices that make Used of electromagnets.
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!
Why can't AC electricity be used to make an electromagnet?
In an electromagnet, the negative side of the coil is said to "emit" the magnetic field lines- it is the north pole of the electromagnet. However, in alternating current, the energized wire alternates between positive and negative. As a result, a conventional electromagnet running on alternating current would constantly be undergoing a reversal of the poles.
Did Michael Faraday invent magnetism?
No. but he used an electromagnet to make discoveries about electricity.
Did Michael Faraday invent the magnet?
No. but he used an electromagnet to make discoveries about electricity.
Can you give me a sentence with electromagnet in it?
Some sentences using the noun 'electromagnet'include:'The English physicist, William Sturgeon, first demonstrated his invention, the electromagnet, in 1824.''Sturgeon used a thin cylinder of iron, curved into a loop and wrapped in copper wire, to make his electromagnet.''Today, electromagnets are used in everyday equipment ranging from delicate medical and scientific instruments to simple locks.''One of the most common everyday use of an electromagnetis in transformers.'
What are electromagnets used to record information on?
Electromagnets...electromagnets are magnets attract, or pull, some kinds of metal objects. Stronger magnets exert a greater pull on the objects they attract. Sometimes it would be useful if you could turn off a magnet when you did not want it to attract objects. That is what an electromagnet can do. Some electromagnets .in power plants and factories electromagnets are very large. You can make a small, simple electromagnet in school or at home.
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.
How can an electromagnet be used in a scrapheap?
== ==
An electromagnet would most likely be used as a what?
A device on the end of a crane to lift cars and junk
