Increasing the RPM of a generator can lead to higher electric output, as the speed of rotation directly affects the frequency and voltage generated. This relationship holds true for both AC and DC generators, although the mechanisms may differ slightly. Higher RPMs can enhance the electromagnetic induction process, resulting in increased power generation. However, there are practical limits to RPM increases due to mechanical stress and heat generation. Overall, optimizing RPM is crucial for maximizing a generator's efficiency and output.