Final answer:
Abnormally large temperatures can cause overheating, damage, and a decrease in the efficiency of a motor.
Step-by-step explanation:
Abnormally large temperatures can have detrimental effects on a motor. When a motor operates at high temperatures, the increased temperature can cause the motor to overheat. This can lead to damage or even burnout of the motor's coils due to the increased resistive power in the coil.
Additionally, high temperatures can affect the viscosity of the motor oil, which can impact the lubrication and overall performance of the motor. It is important to use high-performance motors that can handle and dissipate heat effectively to prevent damage and maintain efficiency.
Overall, abnormally large temperatures can cause overheating, damage, and a decrease in the efficiency of a motor.