Which of the following is not a result of connecting a dual-voltage motor to operate on the higher voltage?

Connecting a dual-voltage motor to operate at the higher voltage typically does not result in increased current draw. Instead, operating at the higher voltage allows the motor to draw less current to deliver the same amount of power compared to when it is connected to the lower voltage. This is because the relationship between voltage, current, and power (as defined by the formula ( P = V \times I )) indicates that as voltage increases, the current must decrease to maintain the same power level. Therefore, if a motor is designed to operate efficiently at a specific voltage level, using a higher voltage generally leads to reduced current draw.

The other options relate to potential issues that may arise when a motor is improperly connected or operated. Higher voltage can sometimes result in overheating if not designed for it, but this is more about the context of misuse rather than the inherent result of using the correct higher voltage. Similarly, reduced efficiency may occur under certain conditions but isn't directly correlated to simply operating on a higher voltage in line with the motor's specifications. Thus, increased current draw is an incorrect consequence of connecting a dual-voltage motor to operate on the higher voltage.