If a table fan is run in a closed room, the air in the room will
If a table fan is run in a closed room, the air in the room will be heated. This is because the fan’s motor generates heat while operating, slightly increasing the room’s temperature despite creating a cooling sensation through air circulation.
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When a table fan is run in a closed room, the air in the room will be heated. This happens because the fan’s motor consumes electrical energy and converts some of it into heat due to inefficiencies. While the fan moves air around, creating a cooling sensation on the skin due to increased evaporation of sweat, it does not lower the air temperature. Instead, the mechanical energy from the fan blades and the heat generated by the motor slightly increase the room’s overall temperature. In a closed environment with no external cooling or ventilation, this added heat can accumulate over time. Therefore, the correct answer is [A] be heated. The fan primarily enhances air circulation, making it feel cooler to individuals in the room, but it does not reduce the ambient temperature and ultimately contributes to a minor rise in heat due to energy dissipation.