Homonym: Coil (Spiral)
A coil is a series of loops or spirals made from a flexible material, often wire. Coils are commonly used in various applications, such as in electrical devices, where they can create magnetic fields or store energy. The shape and size of a coil can affect its function, making it an important component in many technologies.
In physics, coils are often associated with concepts like inductance and electromagnetism. When an electric current passes through a coil, it generates a magnetic field around it. This principle is utilized in devices like transformers and motors, which are essential for converting electrical energy into mechanical energy or vice versa.