Alternators driven by water turbines have __________ poles than those driven by steam, because water turbines rotate at a __________ speed.
A) more, lower
B) more, higher
C) less, lower
D) less, higher

Question

Quizplus · Accepted Answer

Alternators driven by water turbines have more poles than those driven by steam turbines because water turbines rotate at a lower speed. More poles are required to generate electricity at the same frequency with a lower rotational speed.

Alternators Driven by Water Turbines Have __________ Poles Than Those