What is the length of time that current is flowing in electrical terms?

The length of time that current is flowing in electrical terms is referred to as duration. Duration measures how long the electrical current is active or present in a circuit. In various electrical contexts, understanding duration is crucial because it relates to how long a particular current or signal persists, which can affect how electronic devices operate, including their performance and energy consumption.

In contrast, frequency pertains to how often the current cycles or oscillates per unit of time, typically measured in hertz. Amplitude describes the strength or magnitude of the electrical signal, indicating how much voltage or current is being applied. Polarity indicates the direction of the current flow, denoting positive and negative aspects within the circuit. Each of these terms has a distinct meaning that does not directly correlate with the concept of a time duration. Therefore, duration stands out as the appropriate term for expressing how long the current flows.