What happens to power loss in a fan motor?

The power loss in a fan motor is primarily converted to heat energy due to the inefficiencies present in the motor's operation. For instance, factors such as resistance in the windings and friction in the bearings result in energy loss that manifests as heat. This heat generation occurs because electrical energy that does not go into performing useful work—like moving air—transforms into thermal energy instead, raising the temperature of the motor.

In many applications, this heat buildup can be a critical factor as excessive temperature can lead to motor overheating and potential failure. As such, motors are often equipped with cooling methods or thermal overload protection to manage this heat effectively.

In contrast, the other options describe scenarios that do not accurately reflect what occurs with energy loss in a motor. Power loss does not store energy, as the system is continually converting energy rather than saving it. While some heat might dissipate into the air, the primary process is the conversion to heat energy rather than mere dissipation. Lastly, while excessive power loss can lead to operational issues, it does not directly cause a motor to shut down under normal conditions unless it results in critical overheating.