What is an electric current?

An electric current is defined as a flow of electric charge, which primarily consists of moving electrons in a conductor such as a wire. This flow is what allows electrical energy to be transferred and utilized in various applications, such as powering devices, lighting, or heating wires. It is measured in amperes (A) and indicates how much charge is passing a point in the circuit per unit time. Understanding electric current is fundamental to studying electricity and electronic devices, as it forms the basis for how electrical systems operate. The other options are concepts related to electricity but do not accurately define an electric current.