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.
electromagnet
A magnetic field.
an electromagnet becomes storgner when the.
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An electromagnet.
Its called an electromagnet
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.
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.
The electromagnet was invented in the year 1850 by william sturgeon :)
electromagnetism is the force an electromagnet is the object
An electromagnet can be turned on and off.