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Electromagnets can be controlled by adjusting the amount of electric current passing through the wire coil. Increasing the current strengthens the magnetic field, while decreasing the current weakens it. Additionally, the direction of the magnetic field can be controlled by changing the direction of the current flow through the coil.
What else can I help you with?
Whyb are natural magnets noy used in cranes to lift heavy loads?
Natural magnets are not strong enough to lift heavy loads typically encountered in crane operations. Man-made magnets, such as electromagnets, can be controlled and adjusted to generate the necessary magnetic force to lift heavy objects more efficiently. Additionally, natural magnets can lose their magnetism over time, making them unreliable for industrial applications.
Is there a difference between magnets and electromagnets?
"electro magnets" are magnetic ONLY when electricity travels through a coil of wire surrounding them. "Magnets", as you state it, are permanent magnets and remain so independent of and not dependent upon any additional electrical charge.
What do electro magnets do?
Electro magnets are magnets created by wrapping a conductive wire around a core and passing an electric current through the wire. They produce a magnetic field when the electric current flows through them, which can attract or repel nearby magnetic materials. Electro magnets are used in a variety of applications such as electric motors, speakers, and magnetic resonance imaging (MRI) machines.
Why do most electric motors use electro magnets?
Most electric motors use electromagnets because they can be easily controlled by adjusting the electric current flowing through them, allowing for precise speed and torque control. Additionally, electromagnets provide stronger magnetic fields compared to permanent magnets, making them more efficient for many industrial applications.
Why do cranes use electromagnets instead of permanent magnets?
Cranes use electromagnets because they can be controlled and turned on/off easily by adjusting the electric current. This provides flexibility in lifting and releasing materials. Permanent magnets, on the other hand, have a fixed magnetic strength and cannot be adjusted or controlled.
Which magnets can retain their property for a short period of time?
Electro-magnets
Do magnets repel non magnetic materials not including electro-magnets?
of course not.
How are solendoids related to electro magnets?
duplicate
Why are magnets used?
Electro magnets can be very useful to carry heavy loads of iron and metal from one side of a factory to another. Electro-magnets are formed by shooting electricity through a coil of copper.
Are bar magnets stronger than electro magnets?
Yes, because electromagnets can lose their magnetism.
Are electro magnets sometimes called artificial magnets?
Yes, electromagnets itself is an artificial magnet.
What supply should be given for making electro magnets... ac or dc?
For a simple electro-magnet use a DC supply.
What has electro magnets in them?
Lots of things do. For example, relays. (The electronical component)
What uses an electromagnet?
A loud speaker can use electro magnets and i hope this helps =)
What controls both the levitation of the cars and the trains speed?
(electro) Magnets in the "track".
What are electro magnets used in?
car wreck (scrapyards) metel dedectors at airports
Whyb are natural magnets noy used in cranes to lift heavy loads?
Natural magnets are not strong enough to lift heavy loads typically encountered in crane operations. Man-made magnets, such as electromagnets, can be controlled and adjusted to generate the necessary magnetic force to lift heavy objects more efficiently. Additionally, natural magnets can lose their magnetism over time, making them unreliable for industrial applications.
