An electric current is a flow of electric charge. In electric circuits this charge is often carried by moving electrons in a wire. It can also be carried by ions in an electrolyte, or by both ions and electrons such as in an ionised gas (plasma).

Electric current is an energy that flows in an electric circuit. It is the flow of electric charge through a conductor, such as a wire. When there is a potential difference (voltage) across the ends of a conductor, electric charges move from the higher potential side to the lower potential side, creating an electric current.

Electric Circuit:
An electric circuit is a closed loop or path through which electric charges can flow. It consists of various components, such as a power source (battery or generator), conductors (wires), and loads (light bulbs, appliances, etc.). The electric circuit provides a complete path for the flow of electric current.

Electromagnet:
An electromagnet is a type of magnet that is created when electric current flows through a coil of wire. The flow of electric current generates a magnetic field around the coil, which can attract or repel other magnets or magnetic materials. Electromagnets are commonly used in various applications, including electric motors, generators, and speakers.

Electric Current:
Electric current is the rate of flow of electric charge in a circuit. It is measured in units called amperes (A). The flow of electric current is driven by the potential difference (voltage) across the circuit. The charges, usually electrons, move from the negative terminal of the power source to the positive terminal, creating a current flow.

Key Points:
- Electric current is the flow of electric charge through a conductor in an electric circuit.
- An electric circuit provides a complete path for the flow of electric current.
- Electromagnets are magnets created by the flow of electric current through a coil of wire.
- Electric current is measured in amperes (A).
- The flow of electric current is driven by the potential difference (voltage) across the circuit.
- Electric current is essential for the functioning of various electrical devices and systems.