The microvolt (μV) is a unit of electromotive force or electric potential difference that represents one-millionth of a volt in the International System of Units. It measures the voltage across a component or the potential difference between two points in an electrical circuit. The microvolt's symbol, μV, denotes its fractional relationship to the volt, and it is commonly used in various fields such as electronics, electrical engineering, and neuroscience to express low voltage levels accurately. For instance, microvolt measurements are crucial in the development and operation of sensitive electronic devices and in interpreting bioelectric signals like brain waves. Given its capability to quantify minute voltage variations, the microvolt plays a significant role in both practical applications and scientific research, ensuring precision in the analysis and design of electrical and electronic systems.