9. Electric Current

Electric current is the flow of electric charges through a conductor, such as a metal wire. When a battery or power source is connected in a circuit, it pushes electrons through the wire, producing electric current. This lesson explains how a simple electric circuit works using components like cells, switches, wires, and bulbs. Students learn how electric current is measured and how it flows through different materials.

The chapter also introduces important concepts like electric potential difference, resistance, and Ohm’s law, which help us understand how electrical devices operate. These ideas are used in many everyday technologies such as lighting systems, household appliances, mobile chargers, and electronic devices. By studying electric current, students understand the basic principles behind the electricity that powers our modern world.