Final answer:
A thermistor is embedded in motor windings to monitor temperature changes and prevent overheating. This is crucial because the power dissipated by a motor escalates with the square of the current, making the temperature a critical parameter to track.
Step-by-step explanation:
The thermistor type sensor is typically embedded in the motor windings because it can directly measure the temperature of the windings and provide an immediate response to any change. The resistance of motor windings, which are often made of copper wire, is relatively small, but because the power dissipated by a motor is proportional to the square of the current (P = I²R), it can be quite significant under load or when a fault condition arises. Embedding a thermistor within the windings allows for real-time monitoring of temperature and aids in preventing overheating and potential damage to the motor. Given the strong temperature dependence of a thermistor's resistance, this makes it a suitable device for such applications, with its small size contributing to negligible interference with the motor's operation.