Lecture

Power Dissipation in Light Bulb

Description

This lecture discusses the power dissipated in a light bulb connected to a power source, where electrical energy is converted into heat and then into light radiation. The process is analyzed using the Stefan-Boltzmann formula and the concept of black body radiation. The lecture also covers the evolution of temperature over time as the light bulb cools down, explaining the relationship between power dissipation and temperature change. The instructor demonstrates the calculation of the time interval required for the light bulb to reach thermal equilibrium with its surroundings.

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