coils

A coil is a wire wound into a spiral or helix shape, often used in electrical devices. When electricity flows through a coil, it creates a magnetic field around it, which can be used to generate current, store energy, or control electrical circuits. Coils are fundamental components in transformers, inductors, and electromagnets. Their design allows them to influence the flow of electricity efficiently, making them essential in everything from power supplies to electronic devices. The number of turns and the material of the coil affect how it behaves in a circuit.