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An electromagnetic coil is an electrical conductor such as a wire in the shape of a coil (spiral or helix). [ 1 ] [ 2 ] Electromagnetic coils are used in electrical engineering , in applications where electric currents interact with magnetic fields , in devices such as electric motors , generators , inductors , electromagnets , transformers ...
To concentrate the magnetic field in an electromagnet, the wire is wound into a coil with many turns of wire lying side by side. [2] The magnetic field of all the turns of wire passes through the center of the coil, creating a strong magnetic field there. [2] A coil forming the shape of a straight tube (a helix) is called a solenoid. [1] [2]
Coil (chemistry), a tube used to cool and condense steam from a distillation; Coil spring, used to store energy, absorb shock, or maintain a force between two surfaces; Inductor or coil, a passive two-terminal electrical component; Electromagnetic coil, formed when a conductor is wound around a core or form to create an inductor or electromagnet
A current-carrying coil of wire induces a magnetic field according to Ampère's circuital law. The greater the current I , the greater the energy stored in the magnetic field and the lower the inductance which is defined L = Φ B / I {\textstyle L=\Phi _{B}/I} where Φ B {\textstyle \Phi _{B}} is the magnetic flux produced by the coil of wire.
But when the small coil is moved in or out of the large coil (B), the magnetic flux through the large coil changes, inducing a current which is detected by the galvanometer (G). [ 1 ] Faraday's law of induction (or simply Faraday's law ) is a law of electromagnetism predicting how a magnetic field will interact with an electric circuit to ...
An electric current through a wire wound into a coil creates a magnetic field through the center of the coil, due to Ampere's circuital law. Coils are widely used in electronic components such as electromagnets, inductors, transformers, electric motors and generators. A coil without a magnetic core is called an "air core" coil.
Pages in category "Electromagnetic coils" The following 29 pages are in this category, out of 29 total. This list may not reflect recent changes. ...
The electromagnetic force is one of the four fundamental forces of nature. It is the dominant force in the interactions of atoms and molecules. Electromagnetism can be thought of as a combination of electrostatics and magnetism, which are distinct but closely intertwined phenomena. Electromagnetic forces occur between any two charged particles.