3000 r.p.m.
1500 r.p.m.
750 r.p.m.
none of the above
Answer is Wrong!
Answer is Right!
The correct answer is $\boxed{\text{C. 750 r.p.m.}}$.
The speed of a synchronous motor is given by the following equation:
$$n = \frac{120f}{p}$$
where $n$ is the speed in revolutions per
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