What is the coil made up of?
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An electric coil, or electromagnetic coil, is an electrical conductor that contains a series of conductive wires wrapped around a ferromagnetic core that is cylindrical, toroidal, or disk-like.
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An electromagnetic coil is a wire in the shape of a coil, spiral, or helix that is used to conduct electricity.
- In devices such as electric motors, generators, inductors, electromagnets, transformers, and sensor coils, electromagnetic coils are employed in electrical engineering applications where electric currents interact with magnetic fields.
- To produce a magnetic field, either an electric current is passed through the coil's wire, or an external time-varying magnetic field is passed through the coil's interior, generating an EMF (voltage) in the conductor.
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