Final answer:
The high-frequency generator produces the greatest amount of x-rays for the same exposure technique.
Step-by-step explanation:
The x-ray generator that produces the greatest amount of x-rays for the same exposure technique is the high-frequency generator.
In an x-ray generator, the peak emf can be maximized by maximizing the frequency. Higher frequencies result in higher energy x-rays being produced.
For example, a high-frequency generator can provide a higher energy output compared to a low-frequency generator, even if their exposure techniques are the same.