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Differential compound motor is used in large number of applications.

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Differential compound motor is used in large number of applications.

(a) True

(b) False

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Asked question is from Operating Characteristics of DC Compound Motor topic in portion Characteristics of DC Motors of DC Machines

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The correct answer is (b) False

The best explanation: A differentially compound motor has flux/pole φ = (φse – φf). It is seen that on over-load φ reduces sharply and so the motor acts like a series motor on no load. This is why the differential compound motor is not used in practice.

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