What is a pathway through which electrons can flow called?

A pathway through which electrons can flow is termed an electric circuit. In essence, an electric circuit provides a designated route for electrical current to travel, which consists of various components such as power sources, resistors, and connections that facilitate the movement of electrons.

This flow of electrons is crucial for the operation of electrical devices, allowing them to function as intended. An electric circuit can be open or closed; a closed circuit allows electricity to flow freely, while an open circuit interrupts the flow. Understanding this concept is fundamental in both physics and practical applications involving electricity, as it underlies the basic functioning of many electrical systems used in everyday life.

In contrast, other options like a capacitor are electrical components that store and release electrical energy, a transformer is a device that changes the voltage of alternating current (AC), and an insulator is a material that resists the flow of electric charge, preventing electrons from passing through. These alternatives reflect different aspects of electrical engineering rather than defining a pathway for electron flow.