What does current refer to in an electrical context?

In an electrical context, current refers to the flow of electrons through a pathway. It is measured in amperes (A) and represents the movement of electric charge. Current is essential for the functioning of electrical circuits, as it indicates how much electric charge is flowing over a given period of time. Understanding current is foundational in both electronics and electrophysiology, including EEG technology, where the measurement of electrical activity is critical.

The other options refer to different electrical concepts. Potential difference, also known as voltage, refers to the difference in electric potential between two points and is the driving force behind current flow. Resistance relates to the opposition to the flow of current in a circuit, quantified in ohms. Lastly, the storage of electrical energy typically pertains to components such as capacitors or batteries, which store energy for later use. Each of these concepts plays a role in the broader study of electricity, but current specifically deals with the movement of electric charges.