Electric Circuits - Introduction [IB Physics SL/HL]

This video introduces fundamental concepts of electric circuits, starting with the formation of electric current and electric potential difference. It explores electric resistance and resistivity, analyzing Ohm's law, and concludes with a discussion on electric power. The video explains how free electrons in conductors facilitate current flow when influenced by an electric field, and how potential difference drives this flow. It covers the components of a basic circuit, the concept of conventional current, factors affecting resistance, and the relationship between potential difference, current, and resistance as described by Ohm's law. The video also differentiates between ohmic and non-ohmic materials and explains how electric power is dissipated in a circuit.