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What is the relation between the dispersion coefficient and maximum power factor?

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in Design of Electrical Machines by (687k points)
What is the relation between the dispersion coefficient and maximum power factor?

(a) dispersion coefficient is directly proportional to the power factor

(b) dispersion coefficient is indirectly proportional to the power factor

(c) dispersion coefficient is directly proportional to the square of the power factor

(d) dispersion coefficient is indirectly proportional to the square of the power factor

This question was posed to me during an interview.

This intriguing question originated from Dispersion Coefficient in portion Three Phase Induction Motor of Design of Electrical Machines

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Correct option is (b) dispersion coefficient is indirectly proportional to the power factor

Best explanation: The dispersion coefficient is indirectly proportional to the maximum power factor. As the dispersion coefficient increases, the power factor reduces drastically.

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