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Any conductor carrying an electric current induces a magnetic field. If the conductor is wrapped around an iron core, the magnetic field produced can be used for many uses.
Most people have seen scrap-yard magnets used for picking up iron and steel scrap. Electromagnets are also used as electrical relays, speakers, mechanical movements, and metal separators in industry. There are thousands of other uses for this very useful device.
A simple electromagnet is constructed by winding a wire around a cylinder (e.g., empty thread spool) and attaching the ends of the wire to the poles (+ and -) of a battery.
An electromagnet is a coil of wire wrapped around a metal core several times. The individual magnetic fields of the individual wires reinforce and strengthen to form one large magnetic field.
Sigurd Nolan
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Which is better a permanent magnet or an electromagnet?
electromagnet
Strong temporary magnet formed when a current is passed through a coil of wire?
A magnetic field.
An electromagnet becomes storgner when the?
an electromagnet becomes storgner when the.
What does an electromagnet operator do to release metal attached to an electromagnet?
burat
What does an electromagnet operator do to release metal attached to the electromagnet?
burat
What is a magnet made by electric current?
An electromagnet.
What is a solenoid with a ferromagnetic core called?
Its called an electromagnet
Why electromagnet is used for separating plastic bags?
An electromagnet can attract the metal, leaving the plastic behind.An electromagnet can attract the metal, leaving the plastic behind.An electromagnet can attract the metal, leaving the plastic behind.An electromagnet can attract the metal, leaving the plastic behind.
Why electromagnet is different from a permanent magnet because an electromagnet what?
Mainly in that the electromagnet is NOT permanent. In other words, it can be switched on and off.Another relevant difference is that the electromagnet constantly requires power, at least while it is on.
When was the electromagnet invented?
The electromagnet was invented in the year 1850 by william sturgeon :)
What is the difference between electromagnetism and electromagnet?
electromagnetism is the force an electromagnet is the object
An advantage of an electromagnet (in contrast to a bar magnet) is?
An electromagnet can be turned on and off.
