To Determine the Synchronous Speed of a Motor, Multiple 120

question 7

Multiple Choice

To determine the synchronous speed of a motor, multiple 120 by the frequency of the supply current in Hertz and divide their product by the ____.

• A) output voltage in volts
• B) number of poles on the stator
• C) resistance of the rotor windings in ohms
• D) inductive reactance of the rotor in Henries

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