High School

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How many rotations per minute must a two-pole generator rotate to produce 60 Hz?

A. 3600 RPM
B. 1800 RPM
C. 1200 RPM
D. 900 RPM

Answer :

A two pole generator must rotate at 3600 rotations per minute (RPM) to produce an electrical power with a frequency of 60 Hertz (Hz). The correct answer is a.

The question is related to how a two pole generator must rotate to produce a certain frequency of electrical power. Specifically, the question asks how many rotations per minute (RPM) a two pole generator must rotate to produce an alternating current (AC) with a frequency of 60 Hertz (Hz). The formula to find the rotations per minute for a two pole generator is given by:

  • RPM = Frequency (Hz) imes 60 seconds/minute imes 2 poles

For a two pole generator to generate a frequency of 60 Hz:

  • RPM = 60 Hz imes 60 seconds/minute imes 2 poles = 3600 RPM

Thus, the correct answer is a. 3600 RPM.

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