An LC oscillator is an electronic circuit that generates oscillating signals using an inductor (L) and a capacitor (C). The inductor stores energy in a magnetic field, while the capacitor stores energy in an electric field. Together, they create a resonant circuit that can produce alternating current (AC) at a specific frequency determined by the values of the inductor and capacitor. These oscillators are commonly used in various applications, including radio transmitters and receivers, where they help generate and tune signals. The frequency of the oscillation can be adjusted by changing the values of the inductor or capacitor, making LC oscillators versatile components in electronics.