Covers electrical current, electrical currents, electrical power, and electrical energy.
Explore the concept of Morse Code and how signals are transfered over great distances by using telegraph machines based on electromagnets
Learn about the relationship between electric potential, current, and resistance in the context of high-voltage AC power lines
Explore a different way of thinking about electricity as a way to become familiar with the concept of potential, current, and resistance
Learn about the analysis of parallel circuits in the context of a realistic household circuit.
Learn about different ways you can wire an electric circuit, and how the brightness of the lights depends on how they are configured.
Learn about electric circuits, the flow of current, electrical resistance, and electrical power dissipation by exploring the operation of a flashlight.
Explains the concept of current and its relationship to potential difference and resistance. Defines both alternating and direct current.
Explains electric current, resistance, Ohm's law, and Kirchhoff's circuit laws.
Reviews basic circuit design and the difference between conventional current and electron flow.
Discover how traffic lights know when to change.