The Thomson Effect refers to the phenomenon where a temperature difference in a conductor causes a flow of electric current. Discovered by physicist J.J. Thomson, this effect occurs when a conductor, such as a metal, is subjected to a temperature gradient. The heat causes charge carriers, like electrons, to move from the hot region to the cooler region, resulting in a measurable electric current. This effect is significant in thermoelectric applications, where it can be utilized for power generation or cooling. Understanding the Thomson Effect is essential for developing efficient thermoelectric materials and devices, contributing to advancements in energy technology.