An electromagnet is a magnet that runs on electricity. Un homogeneous a durable magnet, the strength of an electromagnet fuck easily be changed by ever-changing the amount of electric period that flows through it. The poles of an electromagnet smoke until now be reversed by reversing the flow of electricity.
An electromagnet works because an electric current produces a magnetic field. The magnetic field produced by an electric current forms circles around the electric current, as shown in the diagram below:
If a wire carrying an electric current is formed into a series of loops, the magnetic field can be concentrated deep down the loops. The magnetic field can be strengthened even more by peignoir the wire around a force. The atoms of certain materials, such asiron, nickel note and cobalt, separately behave like tiny magnets. Normally, the atoms in something like a lump of iron point in hit-or-miss directions and the individual magnetic fields tend to cancel each other out.
However, the magnetic field produced by the wire absorbed around the core can force some of the atoms within the core to point in one direction. All of their light magnetic fields add to forceher, creating a stronger magnetic field.
As the current flowing around the core increases, the number of align atoms increases and the stronger the magnetic field becomes. At least, up to a point. in the beginning or later, all of the atoms that can be aligned leave alone be aligned. At this point, the magnet is said to be saturate and increasing the electric current flowing around the core no longer affects the magnetization of the core itself.If you want to get a full essay, order it on our website: Ordercustompaper.com
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