coil

A coil is a length of insulated wire wound into a spiral or helical shape. It’s used in electrical devices to create magnetic fields, store energy, or transform voltage levels. When electric current flows through the coil, it produces a magnetic field, which is essential in components like transformers, electric motors, and inductors. Coils can vary in size and number of turns, affecting their electrical properties. They are fundamental in electrical engineering for controlling and manipulating electrical energy efficiently while maintaining safety and functionality.