Electric Power

The video tutorial discusses electric power, starting with its definition as the derivative of potential energy with respect to time. It explores deriving electric power using Ohm's law, resulting in three expressions: current times potential difference, current squared times resistance, and potential difference squared over resistance. The tutorial also clarifies the unit kWh, explaining it as a unit of energy, not power. Finally, it uses a light bulb as an example to demonstrate how power affects brightness in an electric circuit.

What is the relationship between electric power and potential energy?

How can we express electric power in terms of current and electric potential difference?

What does one kilowatt-hour (kWh) represent in terms of energy?

Explain why kWh is considered a unit of energy rather than power.

How does the brightness of a light bulb relate to electric power?