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Why are electromagnets used in power stations instead of permanent magnets?
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Why do cranes use electromagnets instead of permanent magnets?
Electromagnets are stronger and weigh far less than permanent magnets.
What is one advantage of using electromagnets instead of permanent magnets?
Electromagnets can be turned off and off
What are three types of magnets?
They are permanent, temporary and electromagnets
What is the difference between a permanent and non permanent magnet?
Permanent magnets are bar magnets or horse shoe magnets which has magnetism at all times. But non permanent also known as temporary magnets are usually electromagnets which would have magnetism only when current flows through the coil that surrounds it.
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.
Why do cranes use electromagnets instead of permanent magnets?
Electromagnets are stronger and weigh far less than permanent magnets.
What is one advantage of using electromagnets instead of permanent magnets?
Electromagnets can be turned off and off
Are electromagnetic magnets permanent?
No, electromagnets are not permanent.
A permanent magnet can affect?
A permanent magnet can affect magnets and electromagnets.
What are three types of magnets?
They are permanent, temporary and electromagnets
Can electromagnets be stronger then permanent magnets?
Yes (and often are).
What do magnets attract that electromagnets do not?
Nothing, elctro magnets act just the same as permanent magnets
Permanent magnets and electromagnets both hold their magnetism for a long period?
the answer is false Permanent magnets will hold their magnetism for a long period of time. Electromagnets will only remain magnetic as long as current is flowing through them.
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 do not quote me on that.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.
Are electromagnets used in generatorsto transform mechanical energy into electrical energy?
This requires magnets in general. It need not be an electromagnet; sometimes electromagnets are used, sometimes permanent magnets.
Both permanent magnets and electromagnets hold their magnetism for a long period of time.?
false
What is the difference between a permanent and non permanent magnet?
Permanent magnets are bar magnets or horse shoe magnets which has magnetism at all times. But non permanent also known as temporary magnets are usually electromagnets which would have magnetism only when current flows through the coil that surrounds it.
