👉 In physics, a thermally defined quantity is an electrical or magnetic field that results from thermal effects. Thermally defined quantities are those that depend on both the temperature and the current density of a material at a given point. These quantities can be used to measure the flow of heat in a material, which is crucial for many applications such as heating devices, power generation, and materials science.
Thermally defined quantities include:
1.
Heat Flux
: This quantity measures the rate of heat transfer from