In the simplest case, an *inductor* is a wound piece of wire. In industry, coils in the form of electromagnets are used in electric motors, for example. When current flows through the wire of a coil, a [[Magnetic Field|magnetic field]] is created. This magnetic field acts on the electrons in the wire and tries to prevent the current from flowing. In physics, this is called **Lenz's law**. When the current decreases, the exact opposite effect occurs: The coil pushes the electrons further, even though they would otherwise have stopped. This delay ultimately causes an oscillation. >[!read]- Further Reading >- [[Electromagnetism]] >- [[Capacitor]] >- [[LC Circuit]] >[!ref]- References