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Electro magnets are only magnetic when an electric current is flowing, unlike a standard magnet which is always magnetic. When the electric current is switched off, the magnetism decays away (collapses). They normally take the form of a fixed core made of soft iron surrounded by a coil of copper wire which acts as the conductor for the electric current. There is a special form of electro magnet which has a movable core instead of it being fixed and this type of electro magnet is called a solenoid. You can see large electro magnets at work at a scrap metal yard, where they are employed on a crane jib to lift and transport scrap iron and steel.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoAn electromagnet is that type of magnet that only acts like a magnet only when an electric current passes through it.
Under normal conditions, an electromagnet is not magnetic, but when current is passed through the electromagnet, it turns into a strong magnet. Magnet fields are generated when electricity is passed through the electromagnet.
This property can be used to selectively make a material magnetic and non magnetic.
Wiki User
∙ 11y agoAn electromagnet is a type of magnet in which the magnetic field is produced by the flow of electric current
Wiki User
∙ 13y agoelectromagnet is a magnet which remains as magnet till when electricity is passed through it.it loses its magnetized property when electricity is stopped passing through it
Wiki User
∙ 13y agoit is a magnet that is powered by electricity, such as the ones for picking up cars.
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What did Michael Faraday discover?
He was famous for proving his theory that a changing magnetic field could generate a electric field and vice versa. this made it possible for later generations to create electric generators as well as motors
Is sulfur magnetic or non magnetic?
Not magnetic
What are magnetic and non magnetic materials?
Magnetic: Fridge magnet Non magnetic: Milk
Is caesium magnetic or non magnetic?
Non magnetic!!
Is silicon magnetic or non magnetic?
It non magnetic
Is a water wave a electromagnetic?
No, eletromagnetic waves propagate in two planes (eletro-magnetic) and can propagate in a vacuum. Water waves, on the other hand, are dependant on matter to transfer energy, making it a mechanical wave, not an eletromagnetic one.
What is non mechanical wave?
Non mechanical waves are Eletro magnetic waves. We can devide 2 waves. 1 is mechanical waves & 2 is electromagnetic waves. For example Sound is a mechanical wave & Light is an electromagnetic wave.
What did Michael Faraday discover?
He was famous for proving his theory that a changing magnetic field could generate a electric field and vice versa. this made it possible for later generations to create electric generators as well as motors
How does an alarm bell work?
magic just kidding a eletro magnet
What is the definition of eletro magnet?
A magnet that becomes energised when an electric current is passed through it.
Volts are a mesurement of what characteristic of electricity?
Volts are the measure of Eletro motive force. (EMF)
Is a water wave an electromagnetic wave?
No, eletromagnetic waves propagate in two planes (eletro-magnetic) and can propagate in a vacuum. Water waves, on the other hand, are dependant on matter to transfer energy, making it a mechanical wave, not an eletromagnetic one.
What is the name of the indie eletro rock song that goes ohohohohohoh ohohohohohoh ohohohohoh ohohoh ohohoh oh and it is not that Zombienation one?
Darude - Sandstorm
Who invented the eletro magnet?
The electro magnet is a British invention - by the scientist William Sturgeon in 1824. See related link for more details.
How do wires make a fan turn?
Wires carry current to the fan from the electrical circuits of the building it is in. Inside the fan motor wires are wound in a particular fashion to make a coil. When any voltage is applied to such a wound coil, it generates an electro magnetic field. When any eletro magnet is placed near to this field, it experience a force, which is what makes the fan rotate.
What actors and actresses appeared in Conflito em San Diego - 1981?
The cast of Conflito em San Diego - 1981 includes: Malu Eletro Bonini
Is sulfur magnetic or non magnetic?
Not magnetic
