What is generated anytime current flows through a wire?

When current flows through a wire, it inevitably generates heat due to the resistance within the wire. This phenomenon is described by Joule's Law, which states that the heat produced is proportional to the square of the current multiplied by the resistance over time. As electrons move through the conductive material, they encounter resistance that leads to energy dissipation in the form of heat. This is a fundamental principle of electrical engineering and is significant for understanding thermal management in electrical circuits. While voltage, light, and current are also related concepts, they do not directly describe the heat generation caused by current flow in the same way that heat does.