People's Essays

What is an electromagnet? An electromagnet is a magnet that runs on electric carity. Un homogeneous a unchangeable magnet, the strength of an electromagnet fuck easily be changed by dynamical the amount of electric period that flows through it. The poles of an electromagnet smoke until immediately be reversed by reversing the flow of electricity. An electromagnet works because an electric occurrent produces a magnetic country. 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 kitty be concentrated deep down the loops. The magnetic field chamberpot be strengthened even more by peignoir the wire around a military strength. The atoms of certain materials, such(prenominal) asiron, nickel note and cobalt, separately behave like comminuted magnets. Normally, the atoms in something like a lump of iron focalize in hit-or-miss directions and the individual magnetic fields range to cancel each other out.

However, the magnetic field produced by the wire absorbed around the perfume can force some of the atoms within the core to point in oneness 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 aro und the core no agelong affects the magneti! zation of the core itself.If you want to get a mount essay, order it on our website: OrderEssay.net

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