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What is the minimum number of poles that a machine must have __________(a) 1(b) 2(c) 4(d) 10I have been asked this question by my college director while I was bunking the class.I'm obligated to ask this question of Relationship between Frequency, Speed and Number of Pole Pairs topic in section Alternating Voltage and Current of Basic Electrical Engineering

Answer» RIGHT choice is (b) 2

Best explanation: The minimum NUMBER of poles that a machine MUST have is 2 because a machine must have at least one PAIR of poles = 2 poles.


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