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Permanent magnets contain a current-carrying wire.
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∙ 7y ago
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Why don't we use permanent magnets in electric bell?
permanent magnets are not used in electric bells because they do not make the bells to ring well
Witch part of an electic motor repels the poles of the permanent magnets?
The part of an electric motor that repels the poles of the permanent magnets is the fly wheel.
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 do not quote me on that.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 are some statements that are true of magnets?
A magnet always has two poles.They have a magnetic field.Electromagnets can be made much stronger than permanent magnets.A magnet always has two poles.
Are permanent magnets are used in doorbells?
no it is not . a temporary magnet is used instead. If you use a permanent magnet, the doorbell will keep on ringing
Which of these is true about lines of force?
they are only found in permanent magnets.
Which of the following is true of permanent magnets?
They are difficult to magnetize,
What types of magnets are harder to magnetize but retain magnetism much longer?
permanent magnets
What is true compasses?
They only point to the Magnetic NorthA compass is a permanent magnentA compass is a permanent magnet. A compass has both a south pole and a north pole. Compass magnets can be deflected by Earth's magnetic field or other permanent magnets.
Are permanent magnets only attracted to other permanent magnets?
No, they are attracted to: Other permanent magnets Solenoids Iron Wires with current running through them
What is true of compasses?
Compasses are navigation tools that indicate direction relative to the Earth's magnetic poles. They consist of a magnetic needle that aligns with the Earth's magnetic field to point towards the North and South poles. Compasses are reliable and do not rely on external power sources, making them useful in various outdoor activities.
Are electromagnetic magnets permanent?
No, electromagnets are not permanent.
How are permanent magnets bad?
Permanent magnets aren't bad. period. I do not know where you heard that but whatevs..
Where can I find permanent magnets?
Permanent magnets can be purchased from sites such as Magnet Sales and PML India. A permanent magnet is more resistant to factors that would demagnetise it than regular magnets.
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 type of magnets are harder to magnets but retains magnetism much longer?
permanent magnets
A permanent magnet can affect?
A permanent magnet can affect magnets and electromagnets.
