What is the working principle of an electric fan?
The surface of the body has a lot of sweat, when the electric fan, indoor air flow, so it can promote the rapid evaporation of sweat, combined with evaporation need to absorb a lot of heat, so people will feel cool.
When the electric fan works, because the electric current passes through the coil of the fan, the wire is provided with resistance, so it will inevitably generate heat and release heat outwards, and the temperature will rise naturally.
The main components of the electric fan are: AC motor. The working principle is that the energized coil rotates under the force of the magnetic field. Electrical energy is converted to mechanical energy, and, at the same time, due to coil resistance, it is inevitable that some of the electrical energy is converted into heat energy.
