A Tank Circuit is an electrical circuit that includes a capacitor and an inductor, which are connected together. This type of circuit is known for its ability to store energy and oscillate at a specific frequency. The energy alternates between the electric field of the capacitor and the magnetic field of the inductor, creating oscillations that can be used in various applications, such as radio transmitters and receivers. Tank circuits are often used in radio frequency applications because they can select and amplify specific frequencies. The resonant frequency of a tank circuit is determined by the values of the capacitor and inductor, which can be adjusted to tune into different signals. This makes them essential components in devices like radios and televisions.